The presence of deuterium, an isotope of hydrogen, in 3I/ATLAS suggests the interstellar comet formed in a much colder place ...

An interstellar comet carries water unlike anything in our solar system, revealing a far colder birthplace and clues about ...

Scientists have found unusually high heavy water levels in interstellar comet 3I/ATLAS. The finding suggests it formed in a ...

Research findings are available online in the journal Nature Astronomy. The original story “ Interstellar Comet 3I/ATLAS ...

Experience the cosmic journey of NASA's Voyager spacecraft at Jawaharlal Nehru Planetarium's new sky show, "Voyager-the Never ...

If an alien in the Alpha Centauri star system were craving pizza, it would take tens of thousands of years to deliver it ...

The comet that rambled past us from another star last year likely originated in a cold, isolated corner of the galaxy that ...

New observations of interstellar comet 3I/ATLAS show high levels of deuterated water, suggesting it formed in a colder star ...

The farthest spacecraft from Earth has shut down another instrument in the hopes of buying time for an upgrade that could ...

The farthest spacecraft from Earth, the Voyager 1 probe, has just shut down another instrument. The reason for this shutdown ...

Learn more about the interstellar traveler, Comet 3I/ATLAS, and what researchers know about its place of origin.

Our time with our interstellar visitor, comet 3I/ATLAS, is almost up. It’s set to leave the solar system soon, after zipping ...