Two NASA rovers on Mars recently made two independent discoveries further indicating that ancient life may have once existed ...

All planets are made of gas, ice, rock and metal, and models of how planets form usually assume that these materials don't ...

Astronomers discover a super-Earth and a sub-Neptune 250 light years away from our solar system. These planets offer a ...

The planets that make up our solar system all tend to lie near this plane. Related: Astronomers Are Monitoring a Newly Discovered Asteroid—That Could Hit Earth To see the planetary parade this ...

Barnard's Star is a small, dim star of the type that astronomers call red dwarfs. Consequently, even though it is one of the ...

While the lineup is not unusual, it is rare for all seven plants to line up at once and won't happen again until 2040. The moon has made its presence in the dotting of planets along the sky and ...

Uranus belongs to the class of planets called ice giants; these worlds have thick, gassy shells and innards that are made up of icy material squeezed beyond recognition. Even among its kind ...

It will be a smaller planetary alignment than the one in January, which boasted seven planets Another planetary alignment is on the way in August Another planetary alignment is coming up next ...

Stargazers will be treated to a rare alignment of seven planets on 28 February when Mercury joins six other planets that are already visible in the night sky. Here's why it matters to scientists.

The moon has made its presence in the dotting of planets along the sky and will do ... record for launch-turnaround by sending a Falcon 9 up twice within nine days early Friday morning.

It will be a smaller planetary alignment than the one in January, which boasted seven planets Another planetary alignment is on the way in August Another planetary alignment is coming up next month, ...