Nearly 4.5 million years ago, two enormous, blazing stars swung close to the solar system. They did not touch the sun, but ...

Scientists find that two hot stars passed near our solar system 4.4 million years ago, altering nearby interstellar clouds.

About 4.5 million years ago, a great cosmic dog kicked past our Solar System – and its effects may still be seen today.

The puzzling electric charge on clouds of interstellar gas can be explained by the passage of two hot, bright stars close to ...

For decades, astronomers have detected an unusual mix of ionised gas in the local clouds. Roughly 20% of hydrogen and 40% of ...

Nearly 4.5 million years ago, two large, hot stars brushed tantalizingly close to Earth's sun. They left behind a trace in ...

The brilliant moon illuminates our night sky again this week, reaching its full phase on Thursday, Dec. 4. All that extra ...