Mysterious 'UFO' captures imaginations in Japan

Mysterious 'UFO' captures imaginations in Japan

It's hardly the stuff of little green men, but a mysterious balloon-like object seen floating across the skies of northern Japan has captured national attention, even prompting questions to the government.

US Scientists reveal mysterious events of asteroid Bennu

US Scientists reveal mysterious events of asteroid Bennu

Shortly after NASA's OSIRIS-REx spacecraft arrived at asteroid Bennu, an unexpected discovery by the mission's science team revealed that the asteroid could be active ...