The inner solar system is home to four rocky worlds that formed under the intense heat of the young Sun. This video explores Mercury, the scarred planet that is slowly shrinking; Venus, where a ...

Earth’s gravity has a lot to do with what people think is up and what is down. Things fall down toward the ground, but that direction depends on where you are.

Scientists have uncovered evidence that our Sun may have traveled across the Milky Way as part of a massive migration of ...

A groundbreaking study in galactic archaeology proves the Sun made a treacherous journey to reach its current home in the ...

The Sun is not nailed to the center of the solar system. It moves, wobbles, and traces a small loop through space, tugged by ...