Showing posts with label alien. Show all posts
Showing posts with label alien. Show all posts

Wednesday, April 29, 2020

Possible Life similarities between Jupiter's moon Europa and depths of the Oceans on Earth


I was very happy to read about the continuity of missions Jupiter’s moon Europa " Europa Clipper mission " We can only be very excited and curious to learn more about the depths of the oceans of Jupiter's moon Europe. The eventual life forms can be infinitely varied, the variety of life oceans of moon Europa is still a mystery at the moment. Thanks to NASA and I want to thank them for their efforts in all areas, we will unravel the mystery of this possible extraterrestrial life ocean soon.

Below is a list of 15 strange species from the depths of the planet Earth's oceans, about which we do not have much scientific information and creatures that still continue to amaze us and surrounded in mystery.  

Think of the endless evolutionary possibilities of Jupiter’s moon Europa my friends !


Gulper Eel or Pelican eel

The pelican eel (Eurypharynx pelecanoides) is a deep-sea eel rarely seen by humans, though it is occasionally caught in fishing nets. It is the only known member of the genus Eurypharynx and the family Eurypharyngidae. It belongs to the "saccopharyngiforms", members of which were historically placed in their own order, but are now considered true eels in the order Anguilliformes.

The Gulper Eel - Science-rumors

The pelican eel has been described by many synonyms, yet nobody has been able to demonstrate that more than one species of pelican eel exists. It is also referred to as the gulper eel (which can also refer to members of the related genus Saccopharynx), pelican gulper, and umbrella-mouth gulper. The specific epithet pelecanoides refers to the pelican, as the fish's large mouth is reminiscent of that of the pelican.


Sandra Raredon/Smithsonian Institution - cropped version of File:Eurypharynx pelecanoides X-ray.jpg

Description

Pelican eel specimens can be hard to describe, as they are so fragile that they become damaged when recovered from the immense pressure of the deep sea. The pelican eel's most notable feature is its large mouth, which is much larger than its body.

Gulper Eel Remarkable Large Mouth - Our Breathing Planet

The mouth is loosely hinged, and can be opened wide enough to swallow a fish much larger than the eel itself. The pouch-like lower jaw resembles that of a pelican, hence its name. The lower jaw is hinged at the base of the head, with no body mass behind it, making the head look disproportionately large. Its jaw is so large that it is estimated to be about a quarter of the total length of the eel itself. When it feeds on prey, water that is ingested is expelled via the gills.


Scripps Institution - UC San Diego Photo of the Week

Pelican eels are black or olive and some subspecies may have a thin lateral white stripe. They are ray-finned fish, and only resemble eels in appearance.  source of text wikipedia


Hatchetfish ( Marine hatchetfishes or deep-sea hatchetfishes )

Marine hatchetfishes or deep-sea hatchetfishes are small deep-sea mesopelagic ray-finned fish of the stomiiform subfamily Sternoptychinae. They should not be confused with the freshwater hatchetfishes, which are not particularly closely related Teleostei in the characiform family Gasteropelecidae.

MLTSHP Deep Sea Hatchetfish

Found in tropical, subtropical and temperate waters of the Atlantic, Pacific and Indian Oceans, marine hatchetfishes range in size from Polyipnus danae at 2.8 cm (1.1 in) to the c.12 cm (4.7 in)-long giant hatchetfish (Argyropelecus gigas).


Wild Facts Creepy alien fish

They are small deep-sea fishes which have evolved a peculiar body shape and like their relatives have bioluminescent photophores. The latter allow them to use counter-illumination to escape predators that lurk in the depths: by matching the light intensity with the light penetrating the water from above, the fish does not appear darker if seen from below. They typically occur at a few hundred meters below the surface, but their entire depth range spans from 50 to 1,500 meters deep. source of text wikipedia


Hagfish  ( Not to be confused with Hogfish )

Hagfish, of the class Myxini (also known as Hyperotreti), are eel-shaped, slime-producing marine fish (occasionally called slime eels). They are the only known living animals that have a skull but no vertebral column, although hagfish do have rudimentary vertebrae. Along with lampreys, hagfish are jawless; they are the sister group to jawed vertebrates, and living hagfish remain similar to hagfish from around 300 million years ago.

Hagfish Bizarre prehistoric alien Pinterest

The classification of hagfish had been controversial. The issue was whether the hagfish was a degenerate type of vertebrate-fish that through evolution had lost its vertebrae (the original scheme) and was most closely related to lampreys, or whether hagfish represent a stage that precedes the evolution of the vertebral column (the alternative scheme) as is the case with lancelets. Recent DNA evidence has supported the original scheme.

Hagfish OCEAN TREASURES

The original scheme groups hagfish and lampreys together as cyclostomes (or historically, Agnatha), as the oldest surviving class of vertebrates alongside gnathostomes (the now-ubiquitous jawed vertebrates). The alternative scheme proposed that jawed vertebrates are more closely related to lampreys than to hagfish (i.e., that vertebrates include lampreys but exclude hagfish), and introduces the category craniata to group vertebrates near hagfish.


Snipe Eel

Snipe eels are a family, Nemichthyidae, of eels that consists of nine species in three genera. They are pelagic fishes, found in every ocean, mostly at depths of 300–600 m but sometimes as deep as 4000 m. Depending on the species, adults may reach 1–2 m (39–79 in) in length, yet they weigh only 80-400 g (a few ounces to a pound).


They are distinguished by their very slender jaws that separate toward the tips as the upper jaw curves upward. The jaws appear similar to the beak of the bird called the snipe. Snipe eels are oviparous, and the juveniles, called Leptocephali (meaning small head), do not resemble the adults but have oval, leaf-shaped and transparent bodies.

A scale diagram of the layers of the pelagic zone. Mature snipe eels generally occupy the Bathypelagic Zone

Spectacular Snipe Eel Sighting Nautilus Live 

Different species of snipe eel have different shapes, sizes and colors. The similarly named bobtail snipe eel is actually in a different family and represented by two species, the black Cyema atrum and the bright red Neocyema erythrosoma.


Giant Isopod


A giant isopod is any of the almost 20 species of large isopods (crustaceans distantly related to shrimp and crabs, which are decapods) in the genus Bathynomus. They are abundant in the cold, deep waters of the Atlantic, Pacific, and Indian Oceans.[1][2] Bathynomus giganteus, the species upon which the generitype is based, is often considered the largest isopod in the world, though other comparably poorly known species of Bathynomus may reach a similar size (e.g., B. kensleyi). The giant isopods are noted for their resemblance to the much smaller common woodlouse (pill bug), to which they are related.

A frontal view of Bathynomus giganteus, showing its large, highly reflective compound eyes wikipedia

French zoologist Alphonse Milne-Edwards was the first to describe the genus in 1879 after his colleague Alexander Agassiz collected a juvenile male B. giganteus from the Gulf of Mexico; this was an exciting discovery for both scientists and the public, as at the time the idea of a lifeless or "azoic" deep ocean had only recently been refuted by the work of Sir Charles Wyville Thomson and others. No females were recovered until 1891.

The underside of Bathynomus giganteus wikipedia

Giant isopods are of little interest to most commercial fisheries, but are infamous for attacking and destroying fish caught in trawls. Specimens caught in the Americas and Japan are sometimes seen in public aquariums.


Sperm Whale or cachalot

The sperm whale (Physeter macrocephalus) or cachalot is the largest of the toothed whales and the largest toothed predator. It is the only living member of the genus Physeter and one of three extant species in the sperm whale family, along with the pygmy sperm whale and dwarf sperm whale of the genus Kogia.

Sperm Whales Clicking You Inside Out — James Nestor at The Interval youtube

The sperm whale is a pelagic mammal with a worldwide range, and will migrate seasonally for feeding and breeding. Females and young males live together in groups, while mature males (bulls) live solitary lives outside of the mating season. The females cooperate to protect and nurse their young. Females give birth every four to 20 years, and care for the calves for more than a decade. A mature sperm whale has few natural predators, although calves and weakened adults are sometimes killed by pods of killer whales (orcas).

The sperm whale's brain is the largest in the world, five times heavier than a human's. wikipedia

Mature males average 16 metres (52 ft) in length but some may reach 20.7 metres (68 ft), with the head representing up to one-third of the animal's length. Plunging to 2,250 metres (7,382 ft), it is the third deepest diving mammal, exceeded only by the Southern elephant seal and Cuvier's beaked whale. The sperm whale uses echolocation and vocalization as loud as 230 decibels (re 1 µPa m) underwater. It has the largest brain on Earth, more than five times heavier than a human's. Sperm whales can live 70 years or more.

Anatomy of the sperm whale's head. The organs above the jaw are devoted to sound generation. wikipedia

Spermaceti (sperm oil), from which the whale derives its name, was a prime target of the whaling industry, and was sought after for use in oil lamps, lubricants, and candles. Ambergris, a solid waxy waste product sometimes present in its digestive system, is still highly valued as a fixative in perfumes, among other uses. Beachcombers look out for ambergris as flotsam. Sperm whaling was a major industry in the 19th century, depicted in the novel Moby-Dick. The species is protected by the International Whaling Commission moratorium, and is listed as vulnerable by the International Union for Conservation of Nature.


Giant Tube Worm Riftia pachyptila

Riftia pachyptila, commonly known as giant tube worms, are marine invertebrates in the phylum Annelida[1] (formerly grouped in phylum Pogonophora and Vestimentifera) related to tube worms commonly found in the intertidal and pelagic zones. Riftia pachyptila live on the floor of the Pacific Ocean near black smokers, and can tolerate extremely high hydrogen sulfide levels. These worms can reach a length of 3 m (9 ft 10 in) and their tubular bodies have a diameter of 4 cm (1.6 in). Ambient temperature in their natural environment ranges from 2 to 30 degrees Celsius.

Photo of one of the largest concentrations of Riftia pachyptila observed, with anemones and mussels colonizing in close proximity. From the 2011 NOAA Galapagos Rift Expedition. The original NOAA image has been modified by increasing brightness. wikipedia

The common name "giant tube worm" is however also applied to the largest living species of shipworm, Kuphus polythalamia, which despite the name "worm" is a bivalve mollusc, rather than an annelid.


Dragon fish known as Stomiidae  other article about Deep-sea dragonfish, one of the most bizarre creatures of the Sea - VIDEO

Stomiidae is a family of deep-sea ray-finned fish, including the barbeled dragonfishes. They are quite small, usually around 15 cm, up to 26 cm. These fish are apex predators and have enormous jaws filled with fang-like teeth. 


Scientists crack secret of dragonfish's deadly 'invisible' teeth New York Post

They are also able to hinge the neurocranium and upper-jaw system, which leads to the opening of the jaw to more than 100 degrees.[1] This ability allows them to consume extremely large prey, often 50% greater than their standard length  



Angler fish

The anglerfish is a fish of the teleost order Lophiiformes It is a bony fish named for its characteristic mode of predation, in which a fleshy growth from the fish's head (the esca or illicium) acts as a lure for other fish.

Representatives of ceratioid families as recognized in this study-1. (A) Centrophrynidae: Centrophryne spinulosa Regan and Trewavas, 136 mm SL, LACM 30379-1; (B) Ceratiidae: Cryptopsaras couesii Gill, 34.5 mm SL, BMNH 2006.10.19.1 (photo by E. A. Widder); (C) Himantolophidae: Himantolophus appelii (Clarke), 124 mm SL, CSIRO H.5652-01; (D) Diceratiidae: Diceratias trilobus Balushkin and Fedorov, 86 mm SL, AMS I.31144-004; (E) Diceratiidae: Bufoceratias wedli (Pietschmann), 96 mm SL, CSIRO H.2285-02; (F) Diceratiidae: Bufoceratias shaoi Pietsch, Ho, and Chen, 101 mm SL, ASIZP 61796 (photo by H.-C. Ho); (G) Melanocetidae: Melanocetus eustales Pietsch and Van Duzer, 93 mm SL, SIO 55-229; (H) Thaumatichthyidae: Lasiognathus amphirhamphus Pietsch, 157 mm SL, BMNH 2003.11.16.12; (I) Thaumatichthyidae: Thaumatichthys binghami Parr, 83 mm SL, UW 47537 (photo by C. Kenaley); (J) Oneirodidae: Chaenophryne quasiramifera Pietsch, 157 mm SL, SIO 72-180. Courtesy of the American Society of Ichthyologists and Herpetologists.


Some anglerfish are notable for extreme sexual dimorphism and sexual symbiosis of the small male with the much larger female, seen in the suborder Ceratioidei. In these species, males may be several orders of magnitude smaller than females.

The Creepy Anglerfish Comes to Light. (Just Don't Get Too Close ...  NYT

Anglerfish occur worldwide. Some are pelagic (dwelling away from the sea floor), while others are benthic (dwelling close to the sea floor). Some live in the deep sea (e.g., Ceratiidae), while others on the continental shelf (e.g., the frogfishes Antennariidae and the monkfish/goosefish Lophiidae). Pelagic forms are most laterally compressed, whereas the benthic forms are often extremely dorsoventrally compressed (depressed), often with large upward-pointing mouths.



Viperfish

A viperfish is any species of marine fish in the genus Chauliodus. Viperfish are characterized by long, needle-like teeth and hinged lower jaws. A typical viperfish grows to lengths of 30 to 60 cm (12 to 23.5 in). Viperfish stay near lower depths in the daytime and shallower depths at night, primarily in tropical and temperate waters. Viperfish are believed to attack prey after luring them within range with light-producing organs called photophores, which are located along the ventral sides of its body, and with a prominent photophore at the end of a long spine in the dorsal fin reminiscent of the illicium of the unrelated deepsea anglerfishes. The viperfish flashes this natural light on and off, at the same time moving its dorsal spine around like a fishing rod and hanging completely still in the water. It also uses the light producing organ to communicate to potential mates and rivals.

Animal Diversity Web Chauliodus sloan

Viperfish vary in color from green, silver, to black. A viperfish uses its fang-like teeth to immobilize prey and would not be able to close its mouth because of their length, if it were not able to fold and curve them behind its head. The first vertebra behind the head of the viperfish absorbs the shock of biting prey. As with other deepsea fish, they are able to endure long periods with minimal food.

Viperfish are believed to live from 30 to 40 years in the wild, but in captivity they rarely live more than a few hours. Some species of dolphins and sharks are known to prey upon viperfish. Scientists believe they can swim at a speed of two body lengths per second, but this is not yet an official speed.

Viper fish zoom photo pinterest

Although it may appear to be covered in scales, it is covered by a thick, transparent coating of unknown substance. Extremely large, fang-like teeth give the fish a slightly protruded lower jaw which makes catching prey easy. The viperfish is lined with three different types of photophores, which some speculate are used to lure prey. They have microscopic spheres without a pigment layer that are scattered over the dorsal side, large spheres with a pigment coat, reflectors, and lens and large, bell-shaped organs with a pigment coat, reflectors, and lens that are grouped together in rows along the dorsal surface. Photophores can also be seen along the ventral and lateral surface of the fish. source wikipedia


Fangtooth


Fangtooths are beryciform fish of the family Anoplogastridae (sometimes spelled "Anoplogasteridae") that live in the deep sea. The name is from Greek anoplo meaning "unarmed" and gaster meaning "stomach". With a circumglobal distribution in tropical and cold-temperate waters, the family contains only two very similar species in one genus, with no known close relatives.

Anoplogaster cornuta - Wikipedia
Description

While understandably named for their disproportionately large, fang-like teeth and unapproachable visage, fangtooths are actually quite small and harmless to humans: the larger of the two species, the common fangtooth, reaches a maximum length of just 16 cm (6.3 in) the shorthorn fangtooth is less than half this size though currently known only from juvenile specimens.

New Scientist Up close with the giant teeth of the deep-sea fangtooth

The head is small with a large jaw and appears haggard, riddled with mucous cavities delineated by serrated edges and covered by a thin skin. The eyes are relatively small, set high on the head; the entire head is a dark brown to black and is strongly compressed laterally, deep anteriorly and progressively more slender towards the tail.

Laboratory News Common Fangtooth alien face

The fins are small, simple, and spineless; the scales are embedded in the skin and take the form of thin plates. As compensation for reduced eyes, the lateral line is well-developed and appears as an open groove along the flanks.


Vampire Squid

The vampire squid (Vampyroteuthis infernalis, lit. "vampire squid from Hell") is a small cephalopod found throughout temperate and tropical oceans in extreme deep sea conditions. Unique retractile sensory filaments justify the vampire squid's placement in its own order, Vampyromorphida, as it shares similarities with both octopuses and squid. As a phylogenetic relict, it is the only known surviving member of its order. The first specimens were collected on the Valdivia Expedition and they were originally described as an octopus in 1903 by German teuthologist Carl Chun, but later assigned to a new order together with several extinct taxa.

Vampire Squid (Vampyroteuthis infernalis) – Our Wild World

Description

The vampire squid can reach a maximum total length around 30 cm (1 ft). Its 15-centimetre (5.9 in) gelatinous body varies in colour from velvety jet-black to pale reddish, depending on location and lighting conditions. A webbing of skin connects its eight arms, each lined with rows of fleshy spines or cirri; the inner side of this "cloak" is black.



Only the distal halves (farthest from the body) of the arms have suckers. Its limpid, globular eyes, which appear red or blue, depending on lighting, are proportionately the largest in the animal kingdom at 2.5 cm (1 in) in diameter. The name of the animal was inspired by its dark colour, cloaklike webbing, and red eyes, rather than habit—it feeds on detritus, not blood.


Oarfish

Not to be confused with Paddlefish.

Oarfish are large, greatly elongated, pelagic lampriform fish belonging to the small family Regalecidae. Found in all temperate to tropical oceans yet rarely seen, the oarfish family contains three species in two genera. One of these, the giant oarfish (Regalecus glesne), is the longest bony fish alive, growing up to 8 m (26 ft) in length.

Sea Serpent - Can the Giant Oarfish Predict Earthquakes? The Vintage News

The common name oarfish is thought to be in reference either to their highly compressed and elongated bodies, or to the now discredited belief that the fish "row" themselves through the water with their pelvic fins. The family name Regalecidae is derived from the Latin regalis, meaning "royal". The occasional beachings of oarfish after storms, and their habit of lingering at the surface when sick or dying, make oarfish a probable source of many sea serpent tales.


Although the larger species are considered game fish and are fished commercially to a minor extent, oarfish are rarely caught alive; their flesh is not well regarded for eating due to its gelatinous consistency

United States Navy SEALS holding a 23-foot (7.0 m) giant oarfish, found washed up on the shore near San Diego, California, in September 1996 wikipedia

Anatomy and morphology

The dorsal fin originates from above the (relatively large) eyes and runs the entire length of the fish. Of the approximately 400 dorsal fin rays, the first 10 to 13 are elongated to varying degrees, forming a trailing crest embellished with reddish spots and flaps of skin at the ray tips. The pelvic fins are similarly elongated and adorned, reduced to one to five rays each. The pectoral fins are greatly reduced and situated low on the body.


The anal fin is completely absent and the caudal fin may be reduced or absent, as well, with the body tapering to a fine point. All fins lack true spines. At least one account, from researchers in New Zealand, described the oarfish as giving off "electric shocks" when touched.


Nautilus

The nautilus (from the Latin form of the original Ancient Greek: ναυτίλος, 'sailor') is a pelagic marine mollusc of the cephalopod family Nautilidae, the sole extant family of the superfamily Nautilaceae and of its smaller but near equal suborder, Nautilina.

It comprises six living species in two genera, the type of which is the genus Nautilus. Though it more specifically refers to species Nautilus pompilius, the name chambered nautilus is also used for any of the Nautilidae. All are protected under CITES Appendix II.

Nautilus, Palau wikipedia

Nautilidae, both extant and extinct, are characterized by involute or more or less convolute shells that are generally smooth, with compressed or depressed whorl sections, straight to sinuous sutures, and a tubular, generally central siphuncle. Having survived relatively unchanged for hundreds of millions of years, nautiluses represent the only living members of the subclass nautiloidea, and are often considered "living fossils".

Diagram of the anatomical structure of a female N. pompilius including most of its internal organs. wikipedia

The first and oldest fossil of Chambered Nautilus displayed at Philippine National Museum.
The word nautilus is derived from the Greek ναυτίλος nautílos and originally referred to the paper nautiluses of the genus Argonauta, which are actually octopuses. The word nautílos literally means "sailor", as paper nautiluses were thought to use two of their arms as sails



Coelacanth 

Latimeria chalumnae "fish with legs from Indian Ocean" the mysterious living fossil reveals its secrets

The coelacanths (/ˈsiːləkænθ/ (About this soundlisten) SEE-lə-kanth) constitute a now-rare order of fish that includes two extant species in the genus Latimeria: the West Indian Ocean coelacanth (Latimeria chalumnae) primarily found near the Comoro Islands off the east coast of Africa and the Indonesian coelacanth (Latimeria menadoensis). They follow the oldest-known living lineage of Sarcopterygii (lobe-finned fish and tetrapods), which means they are more closely related to lungfish and tetrapods than to ray-finned fish. They are found along the coastlines of the Indian Ocean and Indonesia. The West Indian Ocean coelacanth is a critically endangered species.

Preserved Latimeria menadoensis, Tokyo Sea Life Park, Japan wikipedia

Coelacanths belong to the subclass Actinistia, a group of lobed-finned fish related to lungfish and certain extinct Devonian fish such as osteolepiforms, porolepiforms, rhizodonts, and Panderichthys. Coelacanths were thought to have become extinct in the Late Cretaceous, around 66 million years ago, but were rediscovered in 1938 off the coast of South Africa.

Pectoral fin of a West Indian Ocean coelacanth wikipedia

The coelacanth was long considered a "living fossil" because scientists thought it was the sole remaining member of a taxon otherwise known only from fossils, with no close relations alive,[5] and that it evolved into roughly its current form approximately 400 million years ago. However, several recent studies have shown that coelacanth body shapes are much more diverse than previously thought.


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Text source wikipedia

Tuesday, February 7, 2017

Deep-sea dragonfish, one of the most bizarre creatures of the Sea - VIDEO

Dragonfish are the stuff of nightmares with their oversized jaws and rows of fanglike teeth. The deep sea creatures may be only several centimeters long, but they can trap and swallow sizeable prey. How these tiny terrors manage to open their mouths so wide has puzzled scientists, until now.

In most fish, the skull is fused to the backbone, limiting their gape. But a barbeled dragonfish can pop open its jaw like a Pez dispenser — up to 120 degrees — thanks to a soft tissue joint that connects the fish’s head and spine, researchers report February 1 in PLOS ONE. 

BIG GULP This X-ray image reveals that a dragonfish has eaten a large lanternfish in a single gulp.
Nalani Schnell of the National Museum of Natural History in Paris and Dave Johnson of the National Museum of Natural History in Washington, D.C., examined preserved specimens of nine barbeled dragonfish genera. 

Five had a flexible rod, called a notochord, covered by special connective tissue that bridged their vertebrae and skulls. When Schnell and Johnson opened the mouths of the fish, the connective tissue stretched out. The joint may provide just enough give for dragonfish to swallow whole crustaceans and lanternfish almost as long as they are.



OPEN WIDE  Some species of dragonfish (Eustomias obscurus shown) open their jaws like Pez dispensers, thanks to a flexible joint at the base of their skulls. The joint may allow the fish to swallow bigger prey, which they trap with their fanglike teeth.

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Monday, October 31, 2016

Another '' Habitable Planet Proxima B'' this exoplanet has important water reserves

Significant water reserves were discovered exoplanet Proxima b, Swiss scientists say. Proxima b could be the closest planet outside the Solar System, a telluric exoplanet, which is in the habitable zone of the star Proxima Centauri.

Proxima b has the same specific features Earth, it can be considered akin to Earth and has significant reserves of water, having dimensions substantially similar to Earth.


Habitable Proxima-b Planet Found Next Door to Milky Way  photo: youtube

All this comes in support of the theory of a life on distant Proxima b exoplanet, say researchers at the University of Berne Swiss. They conducted measurements and necessary research and assume exoplanet Proxima b is slightly larger than Earth, then it reached conclusions that about 90% of the mass of the exoplanet is hard rock specific mountain area and 10% is water, specific oceans. Proxima b is a duplicate of Earth.

According to researchers who study planetary science, small planets are among the best candidates for the role of "second Earth", where life can exist. As a result, studies on such objects will be continued and expanded, according to researchers, reports RIA Novosti news agency.



Recently scientists announced that the star next to the star Proxima Centauri was also invented the closest exoplanet to Earth, which closely resembles the Sun, which was noted potentiometers training cycle dark points.

Remember that Proxima b exoplanet was discovered by researchers this year using spectral analysis method. Spectral analysis is a method of physical research composition of substances by examining its spectrum of radiation.

According to the study published, these variations indicate the presence of a planet, performing a complete orbit around the star in 11.2 days Proxima Centauri. Proxima b exoplanet it is almost 7.5 million kilometers or 0.05 AU of the star (about 5% of the distance from Earth to the Sun).



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Friday, September 2, 2016

An unusual signal was obtained by Russian astronomers. It may have extraterrestrial origins

Signal is not very different from that used for digital television.

Astronomers have detected a burst of energy last year appeared to his level HD 164 595, a star located at a distance of about 94 light-years from Earth towards the constellation Hercules. This phenomenon was observed by Russian radiotelescope Ratan-600 and immediately aroused the interest of researchers seeking to prove the existence of extraterrestrial life.

,, An international team of researchers announced detection of a strong signal came from the direction of HD164595. Nobody claimed it was caused by an extraterrestrial civilization, but the signal is so obvious that specialists operating Ratan-600 want the target to be monitored further, "says American author Paul Gilster his blog,, Centauri Dreams" .

The signal HD 164595 (Foto:sciencealert.com/C. Maccone et al./Centauri Dreams)
Seth Shostak, an astronomer at the SETI Institute (Search for extraterrestrial intelligence), says that his team has recently tried again to detect the signal issued on 15 May 2015, but found nothing. Both Shostak and Gilster obtained information about the new discovery of the Italian astronomer Claudio Maccone, who collaborated with Russian researchers when they used the telescope Ratan-600.

Maccone Published results were analyzed by specialists. They argue that, in the event that they will prove to be true, would indicate the presence of signals from a star similar to the sun because it has a smaller table with only 1% to it, is younger by 100 million years, it has a similar temperature and, moreover, has a similar chemical composition.

During the research, astronomers have discovered a planet similar to Neptune orbiting the star HD 164595. that she was named ,, HD 164 595 ", and experts say it is possible that other cosmic objects of this kind exist in the area, but not have been detected until now.


Russian Astronomers are particularly fascinated by showing how the signal emitted by the star. He has a wavelength of about 2.7 centimeters and a frequency of 11 GHz, which means it is a very high frequency signal not very different from that used for digital television. Shostak argues that if it was real, the signal must have been extremely powerful to be detected on Earth.

The radio telescope Ratan-600 (Photo: sciencealert.com/александр с кавказа / Wikimedia)
Researcher at the SETI Institute clearly exclude the possibility that the signal had extraterrestrial origin. Specialist argues, first, that their astronomers had more than one year up to give early information about the signal they detected. Secondly, Ratan-600 radio telescope works with an error that does not allow him to ascertain with certainty whether the signal comes from a star system similar to that in the center of which is HD 164595. Moreover, the signal is so vast that is extremely difficult to verify.


SETI specialists will try again to find the new signals from HD 164 595, but expects first Maccone and Russian astronomers to publish their findings formally. Until then, the only hypothesis that American astronomers take still considering is the fact that the signals were emitted lens gravitational what would have been formed when the star HD 164 595 concentrated around its material universe.

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Source: sciencealert.com 

Tuesday, August 9, 2016

KIC 8462852 Alien structure in our galaxy?

One of the most unusual stars in our galaxy, KIC 8462852, is astronomical attention in recent months.

The star is 1,480 light years away from our planet. This sparked the interest of researchers in October when they were discovered unusual fluctuations of light.

In the new study has found that light intensity has decreased dramatically in recent days. Astronomers Montet Ben and Joshua Simon from the Carnegie Institution have discovered the star's light intensity measured by Kepler during the fourth mission. In the early years, the light intensity was decreased by 0.34% each year. Then intensity dropped dramatically, by 2.5% in 200 days, before returning to its intensity bland.

Tabby's Star - Wikipedia

Astronomers have investigated another 500 stars in its neighborhood, but found none like this. ,, The part that surprised us was how quickly and how that change nonlinear. We spent a long time convincing us that it is not real, '' said Montet.

'' These results show a new part of the puzzle impressive ment, '' said the r \ ndul they Tabetha Boyajian. In some theories, it was suggested that decreasing light intensity is caused by a mega alien. The project started on May 18 by the researcher at Yale University, Tabetha Boyajian, accumulated investment amount of $ 100,000 This project aims to investigate the mysterious stars in the galaxy.

Kepler probe monitored the star for four years, assisting in two dramatic incidents in 2011 and 2013, when starlight fell dramatically. When a planet orbits a star, its brightness decreases by one percent. But KIC 8462852, nicknamed Tabby's star, suffered a 22% reduction, which means that a huge object moves around them.

The most remarkable aspect of these fluctuations is made up of hundreds of light gaps that occur over a period of 100 days, indicating that an impressive number of irregular objects passed before the star and blocked temporarily light.


Researchers monitored the star to see what objects produce these forms ..

One of their theories relate to or more satellites or solar panels which surround a star formation known as a Dyson swarm. In a study in which they use information collected by NASA's Spitzer Telescope it was suggested that changing light intensity can be affected by a swarm of comets. In a study published last month it has been stated that the signals are caused by Halley's comet breaking 30 who blocked the starlight.

Observations researchers will continue, but so far no evidence has been found to decrease the brightness deliberately.


Source: dailymail