This Earth Day, April 22, NASA is asking you to share pictures and video of your favorite places on Earth using social media – and tag them #NoPlaceLikeHome. At NASA, we explore lots of planets and there’s a lot to love: the mountains on Mars, the rings of Saturn, the 99.77-degree axial tilt of Uranus. […]
A primitive ocean on Mars held more water than Earth’s Arctic Ocean, according to NASA scientists who, using ground-based observatories, measured water signatures in the Red Planet’s atmosphere. Scientists have been searching for answers to why this vast water supply left the surface. Details of the observations and computations appear in Thursday’s edition of Science […]
A spark from a lightning bolt, interstellar dust, or a subsea volcano could have triggered the very first life on Earth. But what happened next? Life can exist without oxygen, but without plentiful nitrogen to build genes – essential to viruses, bacteria and all other organisms – life on the early Earth would have been […]
Astronomers and space enthusiasts will have a rare opportunity to study a visitor from deep space, when it flies by Earth Monday night, January 26. An asteroid named 2004 BL86 will pass close to us… but still at a safe distance of about three times as far as the moon. BL86 is estimated to be […]