Earth, Mars and Venus all looked pretty similar when they first formed. Today, Mars is dry, cold, and dusty; Venus has a hot, crushing atmosphere. Why did these sibling planets turn out so different?

Venus and Earth used to look like 'twin' planets. What happened? May 8, 2024 6:00 AM ET. ... NASA has sent rovers to its surface to help us learn whether the 'red planet' could have once hosted life.

Studying Venus could give scientists insights of what a world looks like when there are no carbon sinks left. But it also happens to be the closest 'Earth-like' planet that researchers know of.

Studying Venus could give scientists insights of what a world looks like when there are no carbon sinks left. But it also happens to be the closest 'Earth-like' planet that researchers know of.

Studying Venus could give scientists insights of what a world looks like when there are no carbon sinks left. But it also happens to be the closest 'Earth-like' planet that researchers know of.

Studying Venus could give scientists insights of what a world looks like when there are no carbon sinks left. But it also happens to be the closest 'Earth-like' planet that researchers know of.