More than 1 million "interstellar objects" the size of the Statue of Liberty could be drifting unseen in the outer solar ...

The Alpha Centauri star system is approaching the sun. Two researchers have determined how many objects from there have ...

In February 2025, all seven of our planetary neighbors will be visible from Earth. So what does such a planetary alignment ...

The Einstein Probe was launched in January 2024 to study the high-energy universe, and among its instruments is its ...

Planet ‘parades’ are not uncommon. While occasionally spotting 4-5 planets is not unusual, sighting the alignment of all 7 ...

Pluto may not be a planet any more, but you still have a chance to see the distant dwarf planet at one of Michigan's ...

In the Milky Way's central bulge, about 24,000 light-years from Earth, a peculiar pair of objects appears to be hurtling ...

Whether you’re an astronomer, ordinary stargazer or astrologer, the alignment of the other seven planets in our solar system ...

“New Horizons shattered a major paradigm of planetary science,” says Alan Stern, the mission’s principal investigator. “Pluto ...

Saturn, Venus, Neptune, Uranus, Jupiter, Mars and Mercury will be visible in an uncommon planetary alignment this month.

Feb. 18 marks the 95th anniversary of the discovery of our outermost planet-not-planet. Here's what to know about the short ...

Stargazers in parts of the U.S. have a fleeting opportunity this month to catch a rare celestial phenomena—a "parade" of ...