In space, directions like "up" and "down" don’t really exist the way they do on Earth. Since there’s no gravity to pull everything toward one point, there's no fixed sense of direction. Astronauts and ...

The oldest surviving world map, known as the Imago Mundi, offers a fascinating glimpse into ancient Babylonian life. Dating ...

Landsat satellites have gone beyond observing Earth’s land by enabling new methods to measure ocean depth in shallow coastal ...