Whether the raindrop is made of water on Earth, methane on Titan, or liquid iron on an alien world, a new study shows that all raindrops will fall to the ground at a similar size.

Small asteroid 2021 GW4 will pass extremely close to Earth on Monday, April 12, 2021. It'll pass just 12,313 miles (19,816 km) from Earth's surface, or about 5% the Earth-moon distance.

New images of the oldest known pairs of quasars, farthest and oldest yet seen, show that their home galaxies are colliding.

Astronomers detected a new, nearby, repeating fast radio burst, originating from a spot near the great spiral galaxy M81.

NASA's Juno spacecraft - whose mission in orbit around Jupiter was recently extended to 2025 - has been used to discover a rapidly expanding auroral ring at the very fringes of the Jovian magnetosphere.

For the first time, scientists have detected X-rays being emitted by the planet Uranus. The discovery was made by a new analysis of data from NASA's Chandra X-ray Observatory.

An international team of astronomers has mapped a piece of the cosmic web without using bright quasars for the first time. They did it by turning a powerful instrument to a single region of the sky for hundreds of hours.

Data from ESA’s Gaia star-mapping satellite have revealed tantalizing evidence that the famous V-shaped Hyades - nearest star cluster to our sun - is being disrupted. The culprit may be a suspected population of dark matter sub-halos. Wow!

Comet 2I/Borisov is the 2nd known object to pass near our sun from outside our solar system. Its 2019 pass near our sun might have been its first-ever interaction with a star. If so, it's among the most pristine, or unspoiled, objects yet known.

Astronomers have detected a "Goldilocks" or intermediate-mass black hole. It's not small, not supermassive - but right in the middle - and it "sheds light" on how the supermassive black holes got so large.