Astronomers have spotted a quasi-moon near Earth — and the small space rock has likely been hanging out near our planet unseen by telescopes for about 60 years, according to new research.Related video ...

Viral speculation that earth was now home to a second moon has circulated social media over the past days, but astronomers are keen to point out that reality is more complicated but no less compelling ...

Earth has quietly picked up a new traveling companion, a tiny captured object that astronomers say will loop around our ...