A newly discovered interstellar comet, 3I/ATLAS, is captivating astronomers worldwide as evidence mounts that there is more ...

Astronomers have discovered a new interstellar visitor, 3I/ATLAS, which is believed to be the oldest comet ever observed. The comet is estimated to be around 7 billion years old.

However, new research has shown this potentially "water ice-rich" visitor could be even more extraordinary than initially ...

A mystery interstellar object spotted last week by astronomers could be the oldest comet ever seen, according to scientists.

The icy traveler, called 3I/ATLAS or Comet ATLAS, was discovered on July 1 by the NASA -funded ATLAS survey telescope in Río Hurtado, Chile. This enormous space snowball came from the direction of the ...

A mystery interstellar object discovered last week is likely to be the oldest comet ever seen—possibly predating our solar ...

The fastest object in space - Parker Solar Probe - has sent stunning new views of the Sun from its closest distance. The new pictures released by NASA show features in the solar wind and they're ...

NASA confirmed on Friday that the Ax-4 mission crew will depart from the International Space Station no earlier than July 14.

Emily Kwong and Regina Barber of NPR's Short Wave talk about a comet visiting from interstellar space, caterpillars that eat ...

A renowned physicist believes he's cracked the mystery of where a giant unidentified object hurtling through our solar system ...

The ATLAS (short for Asteroid Terrestrial-impact Last Alert System) is a NASA-funded program developed by the University of ...

Astronomers have discovered yet another alien visitor to the Solar System. This one appears to be a comet, a ball of dust, ...