If you wanted to narrow down the search for Earth-like worlds in a vast universe, how might you go about it?
Space Exploration
Dec 17, 2019
1
312
Differences between Martian meteorites and rocks examined by a NASA rover can be explained if Mars had an oxygen-rich atmosphere 4000 million years ago—well before the rise of atmospheric oxygen on Earth 2500 million years ...
Space Exploration
Jun 19, 2013
18
0
(PhysOrg.com) -- Dinosaurs, along with over half of other species, became extinct at the end of the Cretaceous period about 65.5 million years ago, and many scientists believe this was due to a single impact with an asteroid ...
Deposits of volcanic ash colour this view of the Meridiani Planum, as seen by the Mars Express High Resolution Stereo Camera. They also give clues to the prevailing wind direction in this region of Mars.
Space Exploration
May 12, 2010
1
0
(PhysOrg.com) -- Venus and Earth have long been thought of as sister planets. Given its similar size and proximity to Earth in the inner Solar System, Venus might seem like a promising candidate for having a surface that ...
Space Exploration
Mar 22, 2010
3
0
The MESSENGER spacecraft's third flyby of the planet Mercury has given scientists, for the first time, an almost complete view of the planet's surface and revealed some dramatic changes in Mercury's comet-like tail.
Space Exploration
Nov 4, 2009
1
0
A mysterious basin off the coast of India could be the largest, multi-ringed impact crater the world has ever seen. And if a new study is right, it may have been responsible for killing the dinosaurs off 65 million years ...
Earth Sciences
Oct 15, 2009
15
0
(PhysOrg.com) -- Scientists have placed high-tech "spiders" inside and around the mouth of Mount St. Helens, one of the most active volcanoes in the United States. Networks such as these could one day be used to respond rapidly ...
Earth Sciences
Aug 7, 2009
1
0
Using impact craters as a dating tool, Planetary Science Institute Research Scientist Alexander Morgan has determined maximum timescales for the formation of Martian valley networks shaped by running water.
Astrobiology
Jan 15, 2024
3
466
The explosion of the underwater volcano Kolumbo in the Aegean Sea in 1650 triggered a destructive tsunami that was described by historical eye witnesses. A group of researchers led by Dr. Jens Karstens from the GEOMAR Helmholtz ...
Earth Sciences
Oct 26, 2023
0
113
