NASA

NASA’s Voyager 1 is approaching one light-day from Earth, 16 billion miles away, transmitting data slowly while operating autonomously in deep space.

Sean Duffy announces plans to accelerate the construction of a nuclear reactor on the Moon by 2030, with competition from China and Russia.

A mysterious hole in a Martian rock, resembling a cave entrance, was captured by the Curiosity rover — sparking new scientific questions.