Not exact matches
We found that the particles seen in our images, which were droplets of ocean only hours earlier, bore evidence of large organic molecules and compounds that indicated
hydrothermal activity
similar to that observed at deep - sea
vents on Earth's seafloor.
The impact aftermath killed most life on Earth, but the crater itself (bottom)-- shown with a central peak — remained hot long after the blast, perhaps creating a
hydrothermal system
similar to deep - sea
vents.
The organisms likely survive using mechanisms
similar to the ever - increasing parade of creatures that have been discovered living in the total darkness of
hydrothermal vents at the bottom of the ocean, deriving energy from minerals in seafloor rocks.
But some researchers have challenged that theory, noting that chemical activity around
hydrothermal vents could produce
similar structures.
The vast distances that separate
hydrothermal vents make them
similar to isolated island ecosystems, Adams says.
He has done
similar work aboard ships, rocking and swaying high above
hydrothermal vents on the ocean floor, when he wasn't in the submersible itself, exploring the steaming depths.
That means it must be continuously produced there, probably by
hydrothermal reactions
similar to those that occur near hot
vents at the bottom of Earth's oceans (Science, doi.org/b5s9).
Earthly life has proved remarkably hardy in
similar extreme environments such as
hydrothermal vents on the ocean floor and polar ice.
Many distant worlds have never received as much light as Earth, but it is suspected that some of them have
hydrothermal systems
similar to Earth's deep - sea
vents.
Mars is thought to have contained oceans with
similar conditions to those near
hydrothermal vents at around the same time the fossils were thriving, living creatures.
«The amount of molecular hydrogen we detected is high enough to support microbes
similar to those that live near
hydrothermal vents on Earth,» added co-author Christopher Glein, who specializes in extraterrestrial chemical oceanography, also of SwRI.