一级做a免费观看大全视频,中文字幕乱码无限2019,日日麻批40分钟免费视频播放,精品专区性色av,国产性夜夜春夜夜爽,岛国三级片免费看久久,久久五月天和激情网

Deep-sea microbes might grow on Saturn's moon Enceladus: study

Source: Xinhua| 2018-03-01 20:32:06|Editor: pengying
Video PlayerClose

VIENNA, March 1 (Xinhua) -- A certain Deep-sea microbe might be able to survive in conditions closely matched with one of Saturn's moons, according to research published on Tuesday.

In 2005, NASA's Cassini spacecraft detected geysers erupting from the surface of Enceladus, an icy moon orbiting Saturn. Since then researchers have continued to study the moon, trying to figure out if it can be a potential host for alien life.

Researchers at the University of Vienna created several simulations to model various conditions on the moon, varying the pressure to mimic different depths as well as changing ph levels and temperatures.

They then introduced three species of methanogenic archaeal, a type of microorganism that gobbles up carbon dioxide and hydrogen, producing methane as a waste product.

Some methanogens are extremophiles on earth -- known to live deep in the ocean at hydrothermal vents, surviving on the intense heat and chemicals.

One of those organism, called Methanothermococcus okinawensis, found in hydrothermal vents in the East China Sea could thrive irrespective of conditions the researchers dished out, such as all kinds of pressures and temperatures, whether it was given vitamins or exposed to toxic chemicals.

The results of the experiment suggests that a similar creature could possibly survive in Enceladus' oceans. The study appears in the journal Nature Communications.

Simon Rittmann, a biologist who led the research at the University of Vienna, said, "We've extended the boundaries within which we know methanogens can live."

"They are really robust," said Rittmann, "Life is present under so many different conditions on Earth and researchers who work on the origins of life in different environments keep on extending the boundaries under which it can thrive."

TOP STORIES
EDITOR’S CHOICE
MOST VIEWED
EXPLORE XINHUANET
010020070750000000000000011100001370090001


一级做a免费观看大全视频,中文字幕乱码无限2019,日日麻批40分钟免费视频播放,精品专区性色av,国产性夜夜春夜夜爽,岛国三级片免费看久久,久久五月天和激情网 国产视频观看91 国产00在线视频国产 国产综合色视频久久久 久久成人国产精品一区二区 高清无码免费黄色网站