"Without Mars, Earth's orbit would be missing major climate cycles. What would humans and other animals even look like if ...

New research reveals the extent to which Mars is quietly tugging on Earth’s orbit and shaping the cycles that drive long-term ...

As an astronomer studying the universe beyond Earth, I’m fond of “outside the box” views almost by default. But one of my favorites is whenever a spacecraft takes a snapshot of our home world and the ...

The Curiosity Rover posted its first picture of Earth from the surface of Mars to its official Twitter feed Thursday. Look Back in Wonder… My 1st picture of Earth ...

A recent photo from NASA's Curiosity rover gives an idea of what Mars would look like under skies that resemble our own on ...