Editor's note: This article was updated March 25 at 11:40 a.m. ET to account for the recent discovery of new moons around Saturn and Jupiter. The total number of planetary moons and small-body ...

Swipe Down for Full Video Story Most of us learned that the Solar System has eight planets. For many years, Pluto made it ...

"I think these are not far-out type of ideas; they are not really futuristic ideas that we are talking about." ...

I recently received a query from one of my Atlantic Skies readers as to the difference between an occultation and an eclipse.

A giant planet nearly 700 light-years away has a bizarre daily weather cycle where mineral clouds appear every morning and ...

A NASA spacecraft bound for an unusual metallic asteroid recently made a strategic flyby of Mars — and its cameras captured a ...

Scientists may have identified one of the Solar System’s most important “planet factories” hidden just beyond Jupiter.

Scientists believe a dust-filled ring just outside Jupiter acted like a cosmic “planetesimal factory,” producing multiple generations of early space rocks with very different compositions. The ...

NASA's Nancy Grace Roman Space Telescope is poised to make a major leap in the hunt for worlds outside our solar system, ...

Two pairs of ‘rogue’ Jupiter-size, planet-like objects have been found in a large star-forming region in the Milky Way, a new ...

Mars holds a special place in the solar system. It represents marginal habitability. This means it transitioned from warm and ...

Astronomers say that they have identified 20 stars that may have grown up together in a dwarf galaxy named "Loki" that ...