These strange objects could explain how water arrived on Earth, but may also be a previously unrecognised threat to our ...

The Hubble Space Telescope has captured the best picture yet of a high-speed comet visiting our solar system from another ...

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The Hubble Space Telescope has captured the best picture yet of a high-speed comet visiting our solar system from another ...

The Hubble Space Telescope has captured the best picture yet of a high-speed comet visiting our solar system from another ...

The high court rules an earlier case gave too much deference to the California Public Utilities Commission so a new hearing ...

Interstellar comet 3I/ATLAS shines in the sharpest view yet captured by the Hubble Space Telescope, helping astronomers determine the object’s size.

As commercial solar systems age beyond the five- or 10-year mark, a familiar trend emerges: performance drops, alerts get ...

The Hubble Space Telescope estimates the comet's size at no more than 5.6 kilometers. It is the third known interstellar ...

Discovered last month by a telescope in Chile, the comet known as 3I-Atlas is only the third known interstellar object to pass our way.

Astronomers have used NASA's James Webb Space Telescope to find strong evidence for a planet orbiting a star in the triple ...