Interstellar comet 3I/ATLAS was almost called 3I/Rubin, after researchers found that the giant survey telescope ...

The Southwest Research Institute-led Ultraviolet Spectrograph (UVS) instruments aboard ESA's Jupiter Icy Moons Explorer ...

The second wave of observations, conducted since December 2025, have allowed scientists to better characterize the chemical ...

The ion tail appeared as Comet C/2025 R3 PanSTARRS was about 45 million miles from Earth (72 million kilometers) during its closest approach.

Over the next two weeks stargazers have a chance to spot the blue-green orb and smudgy tail of comet known as C/2025 R3 PanSTARRS ...

The Subaru Telescope achieved first light in January 1999 and entered its 27th year of operation in 2026. In March 2025, ...

Astronomers have revealed that the interstellar comet 3I/ATLAS, officially discovered on July 1, 2025, was actually captured ...

Discovered in 2017 by Pan-STARRS atop Halealakalā on Maui, ʻOumuamua was the first confirmed interstellar visitor. Its ...

An interstellar comet that has captivated astronomers this year narrowly missed becoming the first object named after the ...

Outside of Earth, the Universe is vast and ever-changing. Recently, there was a big discovery in our celestial backyard.

Looking for a sky event this week? Check out our full Sky This Week column. May 9: Look the croc in the eye Although still ...

A comet named 3I/ATLAS was first discovered on July 1, 2025, and is located about 420 million miles away from Earth, according to NASA. Thankfully, the comet poses no threat to Earth.