Tech & Science Earthquakes Might Be Feeding Alien Life on Europa

14:37  06 december  2017
14:37  06 december  2017 Source:   Newsweek

Russian Astronaut Says Extraterrestrial Bacteria Found On International Space Station

  Russian Astronaut Says Extraterrestrial Bacteria Found On International Space Station Russian cosmonaut Anton Shkaplerov said the bacteria on the International Space Station did not appear to be from Earth.Astronauts swabbed the surface of the ISS during spacewalks, Shkaplerov said. The cotton swabs were particularly focused on areas were fuel waste accumulated or surfaces of the ISS that were more obscure. The samples were subsequently sent back to Earth for analyzation.

Intriguingly, these warm waters may make it easier for life to make it to the surface. Europa is covered in a miles-thick layer of ice, but a liquid ocean lies beneath. Any potential search for signs of life on this moon now appear to be considerably easier.

Europa 's inner ocean may be capable of supporting simple lifeforms. A proposed lander may go and look for them in the 2030s. That's because the last time the agency tried to look directly for alien life , it didn't end well. Life on Mars?

a close up of a logo: Europa makes its closest approach to Jupiter. © Provided by IBT Media Europa makes its closest approach to Jupiter. Earthquakes could be fueling life on Europa, one of Jupiter’s moons. Scientists have shown that huge chunks of the moon’s ice crust could be sinking others, infusing its underground ocean with chemical food.

The earth’s crust is split into many distinct plates, the largest of which we know as continents. Tectonics describes the movement of these huge, deep pieces of rock, as they collide, submerge and fracture. The vast amounts of energy released by this activity causes earthquakes and volcanic eruptions.

Geophysicists from Brown University in Providence, Rhode Island, have shown that tectonic activity is also feasible within Europa’s ice shell. They used a computer simulation to map subduction—where one giant slab of ice is forced under another.

Bellerin praises Nelson's positional change

  Bellerin praises Nelson's positional change Hector Bellerín has praised Arsenal youngster Reiss Nelson, who has found himself become the Spaniard’s understudy this season. Nelson has previously been regarded as an attack-oriented player, but he has been playing as a right wing-back for Arsenal in the Europa League and the Carabao Cup this season. The 17 year-old has had to learn to adapt to his new position quickly, and Wenger has full faith in the youngster. Bellerín was pleased with the development of the player saying; “When you see him play, even at wing back, you can tell he’s an attacking player. Every time he’s on the ball he tries to make things happen, he looks really comfortable and he’s also someone who understands the Arsenal game.” “When you compete against teams in the Europa League and you’re able to adapt from a No.10 role to a wing-back role, I think that’s remarkable at that age.” Bellerín has always been an admirer of the 17-year old ever since he became involved in the first team training sessions. Nelson is someone who Bellerín hopes can become an important player for Arsenal in the long-term, after really impressing his teammates. He said; “Reiss is one of the players who, since they’ve stepped onto the first-team training pitch, has shown that there’s something quite different about him.” “He’s got a great attitude, he’s got a great style of play and is someone who, when he goes to the under-23s now, he will go and score every single week.” “He’s someone who we’re really happy to have. He needs to keep his feet on the floor in the same way that he’s been doing up until now and, if he keeps going the way he’s going, I’m sure he will have a great career.” “It’s a great opportunity for him to be able to play in these competitions now and I think he’s taking his opportunities really well.

× How extreme aliens living on Jupiter's water-rich moon Europa might look. "My modest thought about what kind of life might be at Europa involves the kinds of things that we see at heads of thermal vents [on Earth], mainly microorganisms," Steve Vance, who is a member of the Europa mission

A new study released by NASA shows that Europa 's oceans might have a lot in common with our own oceans, including a chemical balance capable of harboring life . × Scientists just found more evidence that this mysterious water world might be able to support alien life .

The research was published in the Journal of Geophysical Research: Planets on Monday.

Europa’s tectonic features have been studied for a number of years. Previous studies have pointed towards the possibility of subduction. The moon’s icy surface is relatively smooth, suggesting it is frequently resurfaced by tectonic activity.

Subduction seemed a likely cause because of the ridges that cut through the moon’s oceans, the authors explained. Over many thousands of years, the earth’s tectonic plates have been pushed further and further apart. Huge undersea mountain systems mark this incredible movement today. Similar submarine ridges suggest the outer shell of Europa is expanding too.

"We have this evidence of extension and spreading, so the question becomes where does that material go?" Brandon Johnson, lead author of the study, said in a press release. "On Earth, the answer is subduction zones. What we show is that under reasonable assumptions for conditions on Europa, subduction could be happening there as well, which is really exciting."

Benitez hoping for warm reception from Chelsea fans

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Alien life may get energy to survive from galactic cosmic rays that penetrate deep below the planets' surface, much like extreme microbes living in hostile locations on Earth. "When you have radiation penetrating deep below the surface, where there might be water on Mars or [Jupiter's moon] Europa

'There may be ALIENS on Europa ' Scientists say Jupiter's moon has key ingredients for LIFE . Europa COULD support ALIEN life -forms, study finds ahead of NASA an San Andreas fault: Earthquake swarm PANICS experts who warn ‘more tremors imminent'. Check us on Google+. Subscribe to our rss feed .

a close up of a gong: Composite images show suspected plumes of water vapor on the surface of Europa on January 26, 2014. © Provided by IBT Media Composite images show suspected plumes of water vapor on the surface of Europa on January 26, 2014. The team created a sophisticated computer model of Europa, based on Earth’s tectonic activity. The team’s research suggests that, below the very cold surface of the moon, there is a slightly warmer layer of ice. Depending on the concentration of salt in the two crusts, slabs of warmer ice could be forced all the way down to the moon’s vast underground ocean. Salt encourages ice to conduct heat, which is why we salt snowy roads in winter.

There are important differences between Europa and Earth, which Johnson believes could be of great importance to future study. “

The way that ice deforms under stress can be quite different than the way rock deforms, so I expect there are some major differences. Understanding the similarities and differences between plate tectonics on Europa and Earth will likely lead to some great insights about plate tectonics as a general planetary process,” he told Newsweek.

Tectonics could provide alien food

Destructive as tectonics are on earth, the movement of plates could be fundamental to life on Europa. Scientists believe that the moon’s vast underground sea is potentially filled with organisms. On Earth, subduction can draw magma from below the crust. On Europa, it could draw life-filled water up from the sea with the icy crust infusing the water with chemical food.

"If indeed there's life in that ocean, subduction offers a way to supply the nutrients it would need," Johnson said.

This story has been updated to include additional quotes from Brandon Johnson.

Cigar-shaped object 'could be alien artefact' .
Astronomers are to scan a huge cigar-shaped interstellar object for signs of alien life, amid claims it could be some kind of artefact. Researchers involved in Seti - the Search for Extra-Terrestrial Intelligence - will turn a powerful dish telescope towards "Oumuamua", which was first spotted in October.It is the first object discovered in the solar system that appears to have come from another part of the galaxy - and is assumed to be an asteroid.However, its elongated cigar shape and the fact that it is hundreds of metres in length but only one tenth as wide is peculiar for a typical space rock.

Source: http://uk.pressfrom.com/news/tech-science/-227692-earthquakes-might-be-feeding-alien-life-on-europa/

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