SAN DIEGO — Picture this: A powerful laser system in space, scanning Earth over and over again. That’s exactly what a team at the Scripps Institution of Oceanography is building after being selected ...

Interstellar comet 3I/ATLAS made its closest approach to Earth on Friday, Dec. 19. The comet will pass within about 170 million miles of our planet and poses no danger. While not visible to the naked ...

Astronauts and robotic spacecraft have captured breathtaking photos of Earth from space for decades. See the best images.

Social media users were stunned as the Uttar Pradesh-Bihar belt emerged as one of the brightest spots on NASA's nighttime ...

Just in time for this year's Earth Day (22 April), we have a reminder of how the world looks. The most recent photo of ...