Our solar system’s third discovered interstellar visitor, comet 3I/Atlas, will dip into the glare of the Sun this week, ...

Astronomers are tracking a newly discovered interstellar visitor called 3I/ATLAS, and early research suggests it may be ...

A comet traveling outside the solar system and heading toward the Earth is much larger than scientists first believed, a ...

New data from the International Gemini Observatory revealed the object has grown in its estimated size, with it now weighing ...

The entire progression will be observed by the ESA’s orbiters the Mars Express and ExoMars Trace Gas Orbiter as well as NASA’s Mars Reconnaissance Orbiter which will utilize the cutting edge HiRISA ...

I/ATLAS stands apart from other interstellar objects because of its size as well as pace, and will soon disappear from ...

Something strange is moving through our solar system — and scientists are scrambling to figure out exactly what it is.

A respected Harvard astrophysicist believes one of the most famous signals ever sent to Earth could have been sent by the ...

A massive comet traveling through the solar system is much larger than previously thought and could be a remnant of alien ...

In May 1964, Arno Penzias and Robert Wilson were testing how radio waves bounced off balloon satellites developed by Bell ...

Stargazers can look forward to planet-moon pairings, the Orionids, and the last Milky Way views of the season in October 2025.