Explore astronomy, from the latest trip to the International Space Station to alien planets outside our solar system.
Earth's oldest fossils offer convincing evidence that cells and bacteria were able to thrive in an oxygen-free world more than 3.4 billion years ago.
SpaceX's Elon Musk predicts that a vegan diet would be likely on Mars due to the 'energy and space needed to raise farm animals.'
A new study suggests extraterrestrial beings might consider humanity a threat to other planets, based on how we treat our own.
The advance means astronomers will be able to offer earlier warning of magnetic disruptions that can cut power and interrupt communications.
According to astronomers, the Earth would have at least a decade to prepare to deflect an asteroid.
Astronaut Ron Garan took a stellar photo last weekend of a Perseid meteor from space. See it and five other Perseid photos from recent years.
Like something out of the disaster flick 'Armageddon,' the European Space Agency wants to see if it can deflect a large object using a powerful collision.
Limited amount of lunar samples leaves the Moon's age open to debate and further research.
Officials hope to use the 3-D camera for spacewalks and other activities on board the International Space Station.
The space agency was forced to respond to rumors that the icy comet would bring about the end of the world.
Insights into Titan's weather could help scientists better understand the weather here on Earth.
The crew will visit museums, talk with Stephen Colbert and hang out with Elmo.
SpaceX is one of a few firms making a spaceship to replace the now-defunct U.S. shuttle, which had been used to carry supplies to the orbiting outpost.
Collision provides a model for how the Milky Way and Andromeda galaxies will merge billions of years from now.
NASA holds an online viewing party for eager skywatchers — including a duo of scientists to answer questions.
Eco-entrepreneur on politics, energy and Earth's resources.
Russell blogs about the day's top science and eco-news.