Apollo astronauts might have found a piece of Earth on the moon
28 January 2019
A 4 billion-year-old rock found on the moon may have originally come from our planet, and could be one of the oldest Earth rocks ever seen
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Premium
Moon craters reveal surprise rise in asteroid shrapnel pelting Earth
17 January 2019
Craters on the moon show that it and Earth faced a massive increase in large meteorite strikes about 290 million years ago, which could have endangered life on the planet
Rock layers show our sun has been in same cycle for 700 million years
13 August 2018
Our star gets more and less active in a repeating cycle that lasts 11 years, and ancient rocks suggest it behaved the same way over 700 million years ago
Mars rocks may have drunk up all the water and doomed life there
20 December 2017
We used to think Mars lost most of its water to space when its atmosphere blew away. Instead, the water may have been sucked up by rocks that sunk underground
Enceladus’s hot, gritty core may cook up ingredients for life
6 November 2017
Saturn’s moon Enceladus seems to have a sandy core that warms water passing between the grains. This heating could help create conditions that are right for life
Volcanoes that spew stretchy ice could make dwarf planets bright
20 October 2017
Something strange is happening on dwarf planets Eris and Makemake. They’re tiny and cold, but they still show surprising signs of geologic activity, like real planets
Huge space rocks could have helped start Earth’s plate tectonics
25 September 2017
Nobody knows how or why plate tectonics got started on Earth. But new evidence suggest collisions with space rocks millions of years ago may have something to do with it
Earth's underwater dunes help explain Venus's weird surface
19 July 2017
Some of the properties of wind and dust on Venus may be similar to those of water and sediment at the bottom of our oceans
