New findings from NASA's Mars Reconnaissance Orbiter (MRO) provide the strongest evidence yet that liquid water flows intermittently on present-day Mars.
Space Exploration
Sep 28, 2015
34
3710
The name "critical zone" may give off 1980s action thriller vibes, but it's the term scientists use to refer to the area of Earth's land surface responsible for sustaining life. A relatively small portion of the planetary ...
Earth Sciences
Feb 2, 2023
3
231
(PhysOrg.com) -- Until recently, archeologists have thought of Neanderthals, an early relative of humans, as thick, slow thinking and likely uncreative. Now, new evidence dispels part of that image. Archeologists digging ...
(PhysOrg.com) -- Back in the heyday of the Apollo moon program, hundreds of pounds of rock samples were carted back to Earth by visiting astronauts. Those samples were then pored over more thoroughly by geologists than perhaps ...
Study of natural-occurring 100,000 year-old CO2 reservoirs shows no significant corroding of 'cap rock', suggesting the greenhouse gas hasn't leaked back out - one of the main concerns with greenhouse gas reduction proposal ...
Environment
Jul 28, 2016
131
1404
Some volcanoes can produce eruptions so powerful they release oceans of dust and toxic gases into the air, blocking out sunlight and changing a planet's climate for decades. By studying the topography and mineral composition ...
Planetary Sciences
Sep 15, 2021
0
5639
The Latest Permian Mass Extinction (LPME) was the largest extinction in Earth's history to date, killing between 80–90% of life on the planet, though finding definitive evidence for what caused the dramatic changes in climate ...
Earth Sciences
Jan 26, 2023
4
257
The high-density minerals in the Georgia kaolin mines are potential sources of rare-earth elements, including the heavy rare-earth elements that are in high demand for many important uses and are mostly imported to the United ...
Earth Sciences
Dec 16, 2018
2
1690
(PhysOrg.com) -- It appears that the supposed oldest examples of life on our planet -- 3.5 billion-year-old bacteria fossils found in Australian rock called Apex Chert -- are nothing more than tiny gaps in the rock that are ...
Earth Sciences
Mar 16, 2011
14
0
A team of researchers from the California Institute of Technology, the University of California and Maine Mineral & Gem Museum has found a mineral in a meteorite that does not form naturally on Earth. In their paper published ...
