Comets have long been seen as omens and portents, and it's easy to understand why. They first appear as faint smudges of ...

Miranda is the smallest and innermost of Uranus's five round satellites and orbits the planet around once every 1.4 Earth ...

The James Webb Space Telescope (JWST) has found an exoplanet unlike any other. This unique world has an atmosphere almost ...

NASA has announced that an airplane-sized “city killer” asteroid will skim past Earth today — one of four “hazardous” space rocks to graze our orbit in less than 12 hours. Dubbed 2002 NV16, the cosmic ...

Both of the most famous NASA’s most popular spacecraft – one who is orbiting Earth and the other is much far away in the ...

Doctoral student leads research on planets that pass through the habitable zone during part of their orbits. Are there ...

Thus it follows that the “hypothetical solar nebula could not have rotated with sufficient speed to detach the masses,” when it extended to the orbits of the several planets, as Laplace supposed.

Moons are the norm in our solar system. The International Astronomical Union recognizes 288 planetary moons, and more are ...

Space.com talks to artist and author Martin Vargic, who is turning exoplanets into stunning and intricate art.

Initially, both Uranus and Ceres were classified as planets. But once more objects were found to share similar orbits with Ceres, astronomers had to rethink things — surely, planets lived alone ...

Scientists have not yet found direct evidence of a moon outside our solar system -- but they just found a hint of a hellish one.