The universe

The Hubble Space Telescope has captured two tangled galaxies, whose interactions have caused knots to form in the constellation Coma Berenice, or the "queen's hair."

Data from China's Zhurong rover has revealed what appears to be an ancient shoreline streaking through Mars' northern hemisphere.

A new analysis of Voyager 2 data reveals a fresh theory about Uranus's unique magnetosphere.

Potentially dangerous comets could be spotted many years in advance by following the meteoroid trails they leave near Earth, new research shows.

The cryovolcanic "centaur" comet 29P/Schwassmann-Wachmann has erupted four times in less than 48 hours, becoming unusually bright in the process. It is the most powerful outburst from the city-size oddball in more than three years.

Black hole light echoes are an extreme form of gravitational lensing.

Scientists found molecules containing nitriles in space — the discovery could shed light on the origins of life as we know it.

NASA's Juno spacecraft has sent back stunning photos of Jupiter, including colorful, chaotic storms swirling through the planet’s atmosphere.

Jupiter has no solid ground, like the grass or dirt you tread here on Earth. But how can that be? If Jupiter doesn’t have a surface, what does it have?