Astronomers reported Monday that the probability of the two spiral galaxies colliding is less than previously thought, with a ...

Around 16-17 June, Mars will appear to pass close to Regulus, the bright star at the heart of the constellation Leo, the lion ...

A collision between our Milky Way galaxy and the neighboring Andromeda galaxy, long considered inevitable, may be in question ...

South Korea’s state-backed Institute for Basic Science has ordered the first of five cubesats to study Venus from LEO ...

Exoplanet science is shifting from finding any detectable exoplanets we can to searching for those in their stars' habitable ...

How can fission-powered propulsion help advance deep space exploration, specifically to the outer planets like Jupiter, ...