The interstellar object 3I/ATLAS is drawing heightened scrutiny from astronomers after new measurements indicated a significant velocity shift following its perihelion passage. The development has ...

Interstellar object 3I/ATLAS continues to fascinate astronomers as it rips through our solar system. And the more we find out about the object — widely suspected to be an icy comet — the more ...

Comet 3I/ATLAS is one of only three interstellar objects ever detected in our solar system. Scientists are working to determine the comet's size and physical characteristics as it passes through our ...

A mysterious interstellar object will be visible for a couple more nights before it gets too close to the sun to observe, according to NASA. Comet 3I/ATLAS, the third interstellar object ever detected ...

A Harvard physicist who sounded the alarm earlier this month about a rare interstellar object passing through our solar system — suggesting it might be more than a comet — now says it could even be a ...