Evidence that catastrophic geological events could have created evolutionary bottlenecks that changed the course of life on Earth may be buried within ancient rocks beneath our feet.
Astronomy
Oct 16, 2018
0
216
In the movies, humans often fear invaders from Mars. These days, scientists are more concerned about invaders to Mars, in the form of micro-organisms from Earth. Three recent scientific papers examined the risks of interplanetary ...
Space Exploration
May 2, 2014
15
0
Life on our planet might have originated from biological particles brought to Earth in streams of space dust, a study suggests.
Astronomy
Nov 20, 2017
15
360
Scientists looking for life on distant planets are making plans to search non-Earth-like planets based on discoveries within our solar system that are challenging long-standing ideas about habitable zones, plate tectonics ...
Astronomy
Mar 28, 2018
14
618
Not only is the "Jupiter as shield" concept, implying that the planet shields Earth from comet impacts, not true, but perhaps Jupiter's most important role in fostering the development of life on Earth was just the opposite—delivering ...
Astronomy
Feb 3, 2016
1
201
(Phys.org) —In the hunt for early life, geobiologists seek evidence of ancient microbes in the form of trace fossils – geological records of biological activity – embedded in lavas beneath the ocean floor. Filamentous ...
We may be capable of finding microbes in space—but if we did, could we tell what they were, and that they were alive?
Astronomy
Jul 21, 2017
0
211
Arizona State University's School of Earth and Space Exploration recently released new research on its flagship Smart Course, Habitable Worlds, published in the peer-reviewed journal, Astrobiology. The study found that its ...
Space Exploration
Apr 6, 2018
1
390
Mysterious cosmic rays constantly bombard Earth from outer space. Now scientists find these energetic particles could limit where life as we know it might exist on alien planets.
Astronomy
Nov 12, 2013
8
0
The Big Bang may have started the universe, but it's likely that littler bangs played a key role in life on Earth, say Albion College Physics Professor Nicolle Zellner and Chemistry Professor Vanessa McCaffrey. They (along ...
Space Exploration
Oct 29, 2020
0
4400
