NASA has discovered a mysterious interstellar comet entering our solar system. Learn what this strange visitor is and how scientists are tracking it now.

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...

Astronomers are tracking a newly spotted comet hailing from parts unknown, only the third time such an interstellar object ...

Astronomers are monitoring an object headed our way that may have wandered over from another star system. Scientists have ...

Based on the comet's brightness and current distance — it's located just inside Jupiter's orbit — scientists estimate its ...

NASA said the comet will make its closest approach to the sun in late October, scooting between the orbits of Mars and Earth ...

Interstellar comet 3I/ATLAS confirmed as the third from beyond our solar Livestream of 3I/ATLAS hosted by Virtual Telescope ...