This diagram provided by NASA/JPL-Caltech shows the trajectory of interstellar comet 3I/ATLAS as it passes through the solar system. (NASA/JPL-Caltech via AP) CAPE CANAVERAL, Fla. (AP) — NASA has ...

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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 ...

Their strange movements don’t match the predictions of current solar system models. This odd behavior has sparked new theories, including the bold idea that a yet-undiscovered Earth-sized planet may ...

Now passing through the constellation Leo, the interstellar object sits at a distance so immense that the light from it takes about 15 minutes to reach us.

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 ...

NASA has discovered an interstellar comet that's wandered into our backyard. The space agency spotted the quick-moving object with the Atlas telescope in Chile earlier this week, and confirmed it was ...

CAPE CANAVERAL, Fla. (AP) — NASA has discovered an interstellar comet that’s wandered into our backyard. The space agency spotted the quick-moving object with the Atlas telescope in Chile earlier this ...