For only the third time in history, astronomers have identified what they think is an interstellar object — and it could be ...

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

Astronomers have discovered a rare instance of a interstellar comet speeding through the solar system. The 3I/ATLAS was first ...

Sometimes, "the universe comes to us," writes the European Space Agency — the third time now since 2017. What is it and are ...

These things take millions of years to go from one stellar neighborhood to another, so this thing has likely been traveling ...

A comet the size of Manhattan has been detected hurtling through the solar system, marking only the third time an ...