Stars show chemical traces of past "planetary ingestion" that can be used to search for Earth-like planets.
Scientists have discovered a “hellish” new planet that is hotter than molten lava.
No other known object has characteristics similar to EC 002, an ancient meteorite found in an Algerian dune sea last year.
Worlds orbiting small red dwarf stars might be less vulnerable to damaging space weather, which could boost the odds that they host life.
"We are so focused on finding a mirror image of Earth that we may overlook a planet that is even more well suited for life,” said the lead author of a new study.
At a time when many people are stuck at home, Planet Patrol provides a “community pursuing the common goal of understanding the universe and our place in it,” according to the project leader.
The new research lends credence to the idea of briny lakes existing under the Martian surface and is an important development in the search for Martian life, if it exists.
A team of astronomers and volunteers tracked down the coldest brown dwarfs, which are too small to be stars and too big to be planets, within about 65 light years of the Sun.
NASA's MAVEN spacecraft observed Mars' ultraviolet glow pulsing exactly three times each night, and only in the Spring and Fall.
An international team of astronomers snapped this photo of a young star and its two gigantic planets from a distance of 300 light years.
The new image could be the first direct evidence of the site of a planet's fiery birth in interstellar space.