Add Yahoo as a preferred source to see more of our stories on Google. A comet that is likely much, much older than our solar system has spent months traipsing through Earth's cosmic neighborhood. And ...

Add Yahoo as a preferred source to see more of our stories on Google. NASA's Hubble Space Telescope caught a glimpse of 3I/ATLAS – again. For months, 3I/ATLAS has attracted plenty of attention – and ...

NASA is officially sending a fleet of robotic helicopters to Mars in 2028. The mission, called Skyfall, will deploy three ...

CAPE CANAVERAL, Fla. (AP) — A stray comet from another star swings past Earth this week in one last hurrah before racing back toward interstellar space. Discovered over the summer, the comet known as ...

Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar system. But it may not be around much longer. The otherworldly visitor to ...

A comet hurtling through the solar system from interstellar space is exactly what it appears to be, NASA officials said Wednesday, moving to quash a wave of online speculation. At a news conference, ...

NASA announced a mission to Mars using nuclear electric propulsion. How does it differ from earlier missions that utilized nuclear power in a different way?

At the time of the observations, comet 3I/ATLAS had just passed its perihelion, its closest ever approach to the Sun. While still 210 million kilometers (130 million miles) from our star, this was ...

A cosmic traveler from beyond our solar system is making its closest approach to Earth this week, offering astronomers and stargazers a fleeting opportunity to witness a visitor from another star ...

The mystifying 3I/ATLAS interstellar comet is blazing toward Earth and will in a matter of days come as close to our planet as it ever will. The impending cosmic rendezvous – if you want to call it ...