The private Fram2 mission is launching later today, sending a crew of amateurs to an unprecedented polar orbit—a frontier ...

Before plants ruled, Earth may have glowed violet. The first life forms used retinal instead of chlorophyll, absorbing green light and reflecting red and blue—turning the planet an eerie purple.

Earth is our home planet, and it's the only place in the universe where we know for certain that life exists. Earth formed over 4.5 billion years ago from a swirling cloud of gas and dust squished ...

We know more about the Moon’s surface than Earth’s ocean floor — but that’s changing fast. A NASA-supported team used a ...

Fram2 is set to launch as early as March 31, sending four first-time astronauts into an orbit never before visited by humans.