Discover 3I/ATLAS, an interstellar comet with a reddish hue, rich in water ice, and possibly predating the solar system.

A recently discovered interstellar object, 3I/ATLAS, could potentially be the oldest comet ever observed, predating our solar ...

Professor Avi Loeb, a theoretical physicist and cosmologist from Harvard University, told MailOnline why he thinks a new ...

Scientists determine if an object is interstellar by computing its trajectory and observing its speed, as demonstrated with the recently discovered 3I/Atlas.

Well, it's July 12, which means (a) the Steam Summer Sale is over and (b) it's really hot outside in the northeastern U.S.

There have been a number of strange objects that have entered our solar system over the past decade, all of which have raised ...

A mysterious object, first observed hurtling across the solar system on July 1, has now been identified as "very likely to be the oldest comet ever."  The interstellar object 3I/ATLAS could be around ...

A newly discovered object from deep space may be the oldest comet ever observed—possibly more than 7 billion years old, and ...

A minuscule meteorite seems to be rewriting the history of our solar system. The 50-gram Northwest Africa 12264 has brought a new understanding of when and how rocky worlds came together. Inner ...

On Episode 168 of This Week In Space, Rod Pyle and Tariq Malik jump into the headlines, and boy are there a lot of them! Welcome to the "Survivor: NASA" edition!

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