NASA’s Transiting Exoplanet Survey Satellite (TESS) has been used to discover Earth-size planet TOI 700 e. It is "orbiting within the habitable zone of its star – the range of distances where liquid ...

Firefly Aerospace's Blue Ghost captured some stunning sights on its way to the Moon's Mare Crisium basin.

Hundreds of millions of Americans will have the chance in March to see the first total lunar eclipse in nearly three years.

For decades, scientists assumed that life on Earth emerged through a chain of highly improbable flukes. But a new theory suggests it may have instead arrived just in time.

Last year, astronomers discovered an unusual Earth-size exoplanet they believe has a hemisphere of molten lava, with its ...