Then, on Dec. 8, Mars in Sagittarius will go head-to-head with Saturn in Pisces, which could feel as if something (or someone ...

A new study reveals how shifting ice shells on icy moons can cause dramatic pressure changes, sometimes enough to boil their hidden oceans. The outer planets of our Solar System are accompanied by ...

Ask someone on Earth for the time and they can give you an exact answer, thanks to our planet's intricate timekeeping system, ...

Saturn’s rings are not the permanent fixture they appear to be through a backyard telescope. Planetary scientists now agree ...

Despite their liquid water and potential for habitability, these moons are very different environments from Earth. On Earth, ...

Look to the southeastern horizon in the hours following sunset on Nov. 29 — you'll be able to see the moon shine close to the ...

Small icy moons may have hidden oceans that briefly boil under thick ice. Changing pressure inside these moons shapes their ...

Researchers have documented 55 instances of "mini lightning" over two Martian years by eavesdropping on the whirling wind ...

Researchers have documented 55 instances of "mini lightning" over two Martian years by eavesdropping on the whirling wind ...

CAPE CANAVERAL, Fla. (AP) — Scientists have detected what they believe to be lightning on Mars by eavesdropping on the ...

While the crater-pitted moon may appear geologically dead, researchers have discovered more could be going on under its icy ...

The outer planets of the solar system are swarmed by ice-wrapped moons. Some of these, such as Saturn's moon Enceladus, are ...