A Japanese space probe has arrived at an asteroid after a 3½-year journey and will try to get samples to bring back to Earth...

The former business manager for Apollo 11 moonwalker Buzz Aldrin tells ABC's "Good Morning America" she's being unfairly defamed in a lawsuit accusing her along with two of his children of misusing hi...

Former NASA astronaut Buzz Aldrin is suing two of his children and a business manager, accusing them of misusing his credit cards, transferring money from an account and slandering him by saying he ha...

Court-appointed mental-health experts will evaluate the competency of Apollo 11 moonwalker Buzz Aldrin this week as two of his three children try to become his guardians, claiming he suffers from memo...

Hawaii's Supreme Court is scheduled to hear oral arguments in an appeal of a decision to grant a construction permit for a giant telescope planned for a mountain Native Hawaiians consider sacred...

US is stepping up efforts to protect the planet from incoming asteroids that could wipe out entire regions or even continents...

A dust storm at Mars is now global, keeping NASA's Opportunity rover out of touch with Earth...

President Donald Trump is announcing that he is directing the Pentagon to create a new "Space Force" as an independent service branch aimed at ensuring American supremacy in space...

The ashes of Stephen Hawking have been buried in a corner of Westminster Abbey that honors some of Britain's greatest scientists, between the graves of Charles Darwin and Isaac Newton...

A newly announced project by billionaire innovator Elon Musk for a tunnel transit system that would carry travelers to and from Chicago O'Hare International Airport at up to 150 mph is another on a gr...