Second-ever interstellar comet contains alien water

A Hubble Space Telescope image of comet 2I/Borisov, the second confirmed interstellar object to enter our solar system.

Scientists have spotted signs of water as the object, 2I/Borisov, streaks towards the Sun. Astronomers have spotted signs of water spraying off comet 2I/Borisov, which is flying towards the Sun on a journey from interstellar space. It is the first time scientists have seen water in our Solar System that originated

All comets in the solar system might come from the same place

This single frame Rosetta navigation camera image of Comet 67P/Churyumov-Gerasimenko was taken on 7 July 2015 from a distance of 154 km from the comet centre.

All comets might share their place of birth, new research says. For the first time ever, astronomer Christian Eistrup applied chemical models to fourteen well-known comets, surprisingly finding a clear pattern. His publication has been accepted in the journal Astronomy & Astrophysics. Comets: balls of ice or more? Comets travel through our