Add Yahoo as a preferred source to see more of our stories on Google. An interstellar tourist is taking a quick trip through our solar system, becoming one of just three known objects to ever do so, ...

Interstellar comet 3I/ATLAS's first reported sighting was on July 1, and it's going to be the closest it's ever been to Earth on Friday. Along the way, it reached several milestones leading up to what ...

The National Aeronautics and Space Administration has confirmed an interstellar object is passing through our solar system. The object is a comet hailing from the direction of the constellation ...

An interstellar tourist is taking a quick trip through our solar system, becoming one of just three known objects to ever do so, according to NASA. A comet from a solar system outside our own was ...

A newly discovered object speeding through our solar system is sparking excitement among astronomers because it’s not from around here. Believed to be a comet, the object is only the third celestial ...

Interstellar comet 3I/ATLAS's first reported sighting was on July 1, and it's going to be the closest it's ever been to Earth on Friday. Along the way, it reached several milestones leading up to what ...

Experts have confirmed that the mysterious object hurtling towards us, previously dubbed A11pl3Z, is an "interstellar object." The cosmic interloper, officially named 3I/ATLAS, is only the third of ...

NASA unveiled close-up pictures on Wednesday of the interstellar comet that's making a quick one-and-done tour of the solar system. Discovered over the summer, the comet known as 3I/Atlas is only the ...

It’s a stellar discovery. A Manhattan-sized interstellar comet was spotted blazing through our solar system — marking only the third time a mysterious object from beyond our cosmic neighborhood has ...

NASA’s Goddard Space Flight Center shared the images of comet 3I/ATLAS. It's possibly as big as Manhattan, likely older than our own solar system and it's traveling through space at speeds of up to ...

Our Sun’s outer atmosphere, the corona, is millions of degrees hotter than it should be, and no one knows why.