NASA's Perseverance Mars rover has now collected two rock samples, with signs that they were in contact with water for a long period of time boosting the case for ancient life on the Red Planet.
Planetary Sciences
Sep 11, 2021
8
730
A new analysis of 2.5-billion-year-old rocks from Australia finds that volcanic eruptions may have stimulated population surges of marine microorganisms, creating the first puffs of oxygen into the atmosphere. This would ...
Earth Sciences
Aug 26, 2021
0
1128
In caves on the Indonesian island of Sulawesi, ancient peoples marked the walls with red and mulberry hand stencils, and painted images of large native mammals or imaginary human-animal creatures.
Archaeology
May 14, 2021
0
8
The Pleistocene epoch, which started 2.6 million years ago and lasted until about 11,700 years ago, was crucially important for our hominin ancestors.
Archaeology
Apr 26, 2021
7
628
Once upon a time, seasons in Gale Crater probably felt something like those in Iceland. But nobody was there to bundle up more than 3 billion years ago.
Astronomy
Jan 21, 2021
2
139
A new study from scientists at Scripps Institution of Oceanography at UC San Diego and the University of Chicago sheds light on a hotly contested debate in Earth sciences: when did plate subduction begin?
Earth Sciences
Dec 9, 2020
0
633
Breathing quickly in the thin mountain air, my colleagues and I set down our equipment. We're at the base of a jagged outcrop that protrudes upwards out of a steep gravel slope.
Earth Sciences
Nov 3, 2020
0
14
Recently discovered rock art from caves in Northern Spain represents an artistic cultural style common across ancient Europe, but previously unknown from the Iberian Peninsula, according to a study published October 28, 2020 ...
Archaeology
Oct 28, 2020
0
1190
The habitability of a planet depends on many factors. One is the existence of a strong and long-lived magnetic field. These fields are generated thousands of kilometers below the planet's surface in its liquid core and extend ...
Space Exploration
Oct 15, 2020
2
54
A growing body of research suggests the planet Venus may have had an Earth-like environment billions of years ago, with water and a thin atmosphere.
Space Exploration
Oct 7, 2020
0
4831
