YR4 has a 2% chance of hitting Earth in 2032. Astronomers are tracking it to refine estimates of its size and orbit to see how much of a risk the space rock poses.

Gum 41, a radiant nebula in the southern sky, glows due to powerful radiation from a pair of massive stars at its core. This ...

The James Webb Space Telescope has observed the iconic Pillars of Creation and the view is spectacular! Travel 6,500 light-years away in this zoom into the epic new imagery. Also, see a comparison ...

Trans-Neptunian objects (TNOs) are icy bodies that vary widely in size, from large dwarf planets like Pluto and Eris—each ...

New Webb Telescope data uncovers missing gas that enables star formation in the Phoenix cluster, solving a cosmic puzzle.

Astronomer using Hubble discovers "young stars that are spiraling into the center of a massive cluster of stars in the Small ...

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

It measures 130 to 300 feet across, a pebble compared to the asteroid that killed the dinosaurs, which is estimated to have been six to nine miles in length. On the other hand, on Feb. 15, 2013, an ...

While radio jets are relatively common in the nearby Universe, they have been elusive in the early Universe. This is partly ...

"I find this asteroid to be extremely exciting! This is the last chance we have to observe the asteroid from Gemini before 2028." ...

A stunning Valentine's view of a nebula contains hidden depths of starbirth and the violent deaths of massive stars.

The neutrino was 30 times more energetic than any other previously observed particle of its kind. Scientists still don’t know ...