Rarely are deals better than what you see on Black Friday, but Cozy Earth's upping the ante for this pajama sale.

A "House of Cards" is a wonderful English phrase that it seems is now primarily associated with a Netflix political drama.

The interstellar comet will pass safely by Earth, giving astronomers their best chance to study it up close.

The comet will come much closer to Jupiter in March, zipping within 33 million miles. It will be the mid-2030s before it ...

A stray comet from another star swings past Earth this week in one last hurrah before racing back toward interstellar space.

Discovered over the summer, the comet known as 3I/Atlas will pass within 167 million miles of our planet on Friday. That's as ...

This means that the lunar regolith could still hold a very long-term record of Earth's atmospheric history, which in turn ...

The 38-foot-wide space rock is projected to come to within just 123,000 miles of our planet, according to NASA.

The big deals on Oprah-approved pajamas and bedding end this week.

The company had no news to report. So what's spooking investors?

One key component might be RNA, a molecular cousin of DNA found in every form of life on Earth, and now scientists say they have shown how it could have formed on our planet eons ago. But not everyone ...

The severity of global warming has long depended on your frame of reference — on what temperature you think was normal for ...