The moon was formed by a violent, head-on collision between the early Earth and a "planetary embryo" called Theia approximately 100 million years after the Earth formed, UCLA geochemists and colleagues report.
Space Exploration
Jan 28, 2016
61
3667
At the bottom of an icy Antarctic lake, a thin, slimy layer of bright green microbes is generating a tiny oasis of oxygen that might give a picture of what early Earth looked like before oxygen became common in the atmosphere. ...
Earth Sciences
Jan 20, 2016
0
31
On the early Earth, light came not only from the sun but also from the incessant bombardment of fireball meteorites continually striking the planet. Now, the recent work of University of South Florida (USF) associate professor ...
Biochemistry
Dec 16, 2015
2
682
An atmospheric haze around a faraway planet—like the one which probably shrouded and cooled the young Earth—could show that the world is potentially habitable, or even be a sign of life itself.
Space Exploration
Nov 12, 2015
0
1264
Stanford scientists have discovered a surprising source for an organic molecule used as an indicator for life on early Earth.
Biochemistry
Oct 20, 2015
20
1466
"Why would NASA want to study a lake in Canada?"
Space Exploration
Oct 20, 2015
0
35
UCLA geochemists have found evidence that life likely existed on Earth at least 4.1 billion years ago—300 million years earlier than previous research suggested. The discovery indicates that life may have begun shortly ...
Earth Sciences
Oct 19, 2015
83
10147
In its early life, Earth suffered a meteorite pummelling that lasted 100 million years and may have changed its chemical makeup forever, researchers said Wednesday.
Earth Sciences
Sep 23, 2015
2
81
Anyone who's ever noticed a water puddle drying in the sun has seen an environment that may have driven the type of chemical reactions that scientists believe were critical to the formation of life on the early Earth.
Biochemistry
Jul 20, 2015
6
73
Early Earth was an inhospitable place where the planet was often bombarded by comets and other large astrophysical bodies.
Biochemistry
Jul 8, 2015
5
113
