"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today." ...

It sold for more than the maximum estimated price of $4 million. On Wednesday (July 16), the largest Mars meteorite on Earth was auctioned off at Sotheby's in New York City for $4.3 million.

If you're buying binoculars for children, you might balk at spending $200 on a pair. That's where the Celestron Cometron 7x50 ...

Astrophotographer Greg Meyer has captured a spectacular image of the Fireworks Galaxy (NGC 6946) shining close to the dark shape of the Seahorse Nebula.

"The biggest surprise of all was that the black hole was not located inside either of the two nuclei but in the middle. We asked ourselves: How can we make sense of this?" ...

"For the first time, we have identified the earliest moment when planet formation is initiated around a star other than our sun." ...

"One day soon we may be able to see these 'missing' galaxies, which would be hugely exciting and could tell us more about how the universe came to be as we see it today." ...

"Our work is a new piece of evidence that suggests that Mars was once a much more complex and active planet than it is now." ...

Chang'e 6's samples from the lunar far side contain a record of ancient volcanism, magnetism and a mantle depleted in important elements and water.

The first of our showers is the Delta Aquarids, with a broad three-day maximum running from July 29 through 31.

SpaceX launched the third batch of satellites for Amazon's Project Kuiper broadband megaconstellation early on Wednesday morning (July 16). A Falcon 9 rocket topped with 24 Kuiper craft lifted off ...

SpaceX sent 26 more Starlink satellites into low Earth orbit on Tuesday (July 15), after a launch from southern California. A ...