Astronomers have discovered four planets that are just a fraction of the mass of Earth orbiting Barnard’s Star, which is 6 ...

The leading explanation for all of these mysteries is known as the giant impact hypothesis. According to this story, when the ...

Astronomers have made an exciting breakthrough by discovering four sub-Earth exoplanets orbiting Barnard’s Star, our closest ...

Earth is moving much faster than it seems ... How does its orbital speed compare to that of other solar system planets? How fast you need to move to keep in a circular orbit around another ...

An international team led by researchers in Japan and Europe has discovered a new multi-planet system around a Sun-like star, ...

Modern weather radars detect meteorite falls, confirming shocking daytime flashes and guiding precise recoveries.

MAROON-X was specifically designed to detect tiny exoplanets orbiting red dwarf stars by detecting the minuscule ...

Could a giant planet between Mars and Jupiter have doomed Earth? A new study suggests that small changes would have been ...

Here's how astronauts Butch Wilmore and Suni Williams physically managed to last 10 month at the International Space Station.