Astronomers tracking an interstellar object flying through the solar system think it comes from a star at least 8 billion years old, twice the age of our sun

Perplexity AI launched its Comet web browser after Google Chrome rejected the startup's offer to become a default search engine option.

NASA has discovered a new interstellar comet that's currently located about 420 million miles away from Earth. The space agency spotted the quick-moving object with the Atlas telescope in Chile on Tuesday and confirmed it was a comet from another star system. The new interstellar comet's official name is 3I/ATLAS.

I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the galaxy.

The third object known to have entered the Solar System from interstellar space has an origin unlike either of its predecessors.

The comet was identified as interstellar due to its highly eccentric hyperbolic orbit, which is unlike the elliptical orbits of native Solar System objects.