Proponents of going to Mars see peril and opportunity in Elon Musk's close relationship with Trump. Experts say just getting ...

Casey Dreier, chief of space policy at the Planetary Society, highlighted the absence of critical technologies such as life-support systems and infrastructure that are critical for a mission to Mars ...

A Mars image shows a strange square formation. Some think it's artificial, but experts suggest natural causes.

The highlight of this cosmic event is Venus, which will shine at its brightest on Sunday, February 16, making it the most ...

Six planets are part of the alignment, which will last until Feb. 18. Mercury will join the alignment later in the month.

Four of the planets – Mars, Jupiter, Saturn and Venus – will be visible ... The rare parade should be visible until about the end of February, according to The Planetary Society.

An extraordinary astronomical phenomenon will illuminate the sky as stargazers are urged to look up to catch a glimpse of the ...

Four of the planets – Mars, Jupiter, Saturn and Venus ... visible until about the end of February, according to The Planetary Society.