Hale-Bopp originated in the Oort Cloud, a theoretical shell of icy planetesimals surrounding the sun in the outer reaches of ...

From petrified forests to a fiery crater burning for 50+ years, these eight geological phenomena reveal Earth's mysterious ...

Astronomers have discovered a rocky Earth-like planet around a white dwarf star, hinting at our planet's future about eight billion years from now.

Less than 24 hours after Donald Trump was elected the 47th president of the United States, social media users began pushing ...

After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the ...