When interstellar object Oumuamua was discovered in 2017, it sent shock waves throughout astronomy. Oumuamua’s odd cigar-shape and its origins from another solar system were unlike anything ever seen ...

Since early July, telescopes around the world have been tracking just our third confirmed interstellar visitor, the comet 3I/ATLAS—3I, for third interstellar, and ATLAS (Asteroid Terrestrial-impact ...

Orbiting the Earth 353 miles above the ground, the Hubble Space Telescope silently pivots toward its new target. At the same time, flying 93 million miles away in interplanetary space, NASA’s Spitzer ...