The planet named after the king of the gods in Roman mythology is visible all night long right now, rising in the east at ...

One type of star that emits pulsing signals is a type of neutron star called a pulsar, the collapsed core of a massive star that has gone supernova. Pulsars emit beams of radio waves as they spin, so ...

The winter stars are like that. They're bright, sparkly and arrive "from a distance" low on the eastern horizon and gradually ...

December’s full moon, dubbed the cold moon, will reach the crest of its full phase early Sunday. Here’s the best way to view ...

It's the largest star that we've ever discovered. And if it were to replace our Sun, it would change a lot more than just the ...

It starts with recognizing that, despite the buzz and build-up, January 1 is just a date on the calendar. In a recent newsletter, Schwarzenegger said there is nothing magical about starting a new ...

New research on Comet 67P indicates that its water may be similar to Earth's, contradicting earlier findings by Rosetta's ...

King tides are often 1 to 2 feet higher than average tides. But global warming, extreme weather and rising sea levels have ...

For two decades now, the iconic twin Voyager spacecraft have been quietly overturning everything we thought we knew about the ...

Heavy hydrogen could be important in long-range detections of civilizations, says a pioneering astronomical study.

Scientists warn that our sun eject a massive, potentially deadly burst of solar radiation called a "superflare" any day now.

In the coming weeks, the sun, moon, and earth will align to elicit a gravitational pull on the oceans potent enough to ...