Something amazing every day.
Updated: 2 months 3 weeks ago
Earth could continue to host life for another 1.75 billion years, as long as nuclear holocaust, an errant asteroid or another disaster doesn't intervene. But even without such doomsday scenarios, astronomical forces will render the planet uninhabitable.
Rigel is the brightest star in Orion, and will eventually explode into a supernova, most astronomers say.
The sun's insides churn much more quickly than previously thought, a new study shows, a finding expected to improve predictions of solar storms. Plasma flows are more complex and penetrate less deeply than scientists had thought.
Skywatchers across parts of the United States and southern Canada have several chances to spot the new private Cygnus spacecraft as it chases the International Space Station across the pre-dawn sky. Weather permitting, it will be possible to see both spac
Small, serpentine robots could help Mars rovers collect soil samples from crevices beneath rocks and other hard-to-reach places, and they could pull their wheeled siblings to safety if the bigger vehicles get bogged down in soft sand.
Although 2013 was expected to be a year of "Solar Maximum" activity, the Sun has gone disquietingly quiet. It's not a topic for worry, but it has solar scientists scratching their heads.
As the possible 'comet of the century' approaches its date with the Sun (Nov. 28th, 2013), the chances of its break-up will increase exponentially. The comet is not on a trajectory to hit the Earth. What will happen to pieces that may break away?
Scientists have discovered colossal plasma arms reaching out from the nearby Coma Cluster of galaxies. The galactic tentacles are nearly five times the width of our Milky Way and suggest that the cores of turbulent galaxy clusters may be much less chaotic
NASA's Mars rover Curiosity has revealed no trace of methane, a potential sign of primitive life, on the Martian surface, despite past observations of the gas by spacecraft orbiting the Red Planet and from Earth, researchers say.
The two Apollo 13 crew members walk through the events of their upcoming EVA.
The glittering specks in this cool space wallpaper, resembling a distant flock of flying birds, are the stars that make up the dwarf galaxy ESO 540-31.
Members of the public, industry professionals and academics have descended upon Houson for the third annual 100-Year Starship symposium, which will discuss what the world needs to do to make interstellar travel a reality in the next 100 years.
NASA astronaut Chris Cassidy just landed back on Earth last week after spending more than five months aboard the International Space Station. SPACE.com will have a chance to chat with Cassidy on Thursday (Sept. 19) afternoon. What should we ask him?
Comet ISON and Comet Siding Spring will buzz Mars over the course of the next year, prompting excitement and some concern that cometary particles could hit the spacecraft orbiting the Red Planet and exploring its surface.
Canopus is the second-brightest star in the night sky despite its distance from Earth.
A small asteroid harmlessly zipped by Earth closer than the orbit of the moon today (Sept. 18). At just 3 to 10 feet in diameter, asteroid 2013 RZ53 would have burned up in Earth's atmosphere if it were on a collision course with the planet.
Tonight's full moon is called the Harvest Moon because many fruits and vegetables tend to ripen in the late summer and early fall. Farmers once relied on this full moon's light, working late into the evening to harvest their crops.
Water, water everywhere, and some of it fit to drink. That’s the picture of ancient Mars that has emerged during the past few months thanks to discoveries by NASA's Curiosity rover, which has been exploring the Red Planet since August 2012.
The seasons will change this Sunday, with the Northern Hemisphere moving into autumn and the South emerging from winter into spring. The celestial event that marks this transition is called an "equinox." What is an equinox, and why does it occur?
The mighty roar of a commercial rocket launching a brand-new private cargo ship on a stunning debut test flight from Virginia's Eastern shore today (Sept. 18) has NASA overjoyed and the spaceship's builder beaming with pride.