Last year, the search for extraterrestrial intelligence got a major boost when Russian billionaire Yuri Milner unveiled a $100 million effort to scan the skies for radio and light signals emitted by aliens. Not content to simply sit tight and wait for ET to hail us, Milner now plans to build interstellar spacecraft.…
Since Albert Einstein first predicted their existence a century ago, physicists have been on the hunt for gravitational waves, ripples in the fabric of spacetime. That hunt is now over. Gravitational waves exist, and we’ve found them.
Carl Sagan’s birthday would have been today. The astronomer is known for many things, but video games? Not really! But he gave the medium some thought, especially when it came to one of his most famous novels, Contact.
On All Hallow’s Eve, an asteroid dubbed “Spooky” will make its closest approach to our planet. Hurtling along at an impressive 78,830 miles per hour, the 1,300-foot-wide object poses no threat to Earth...or does it? This Gizmodo video explains Spooky’s story.
After nine years and over 3.26 billion miles, the New Horizons spacecraft made its closest approach to Pluto earlier today. Assuming it survived the encounter, the probe is now drifting away from the dwarf planet as it heads deeper into the Kuiper Belt.
After scrapping all of its planned test launches earlier this month, NASA will today attempt to release its Low Density Supersonic Decelerator (LDSD) from the edge of space. The rocket-powered, flying saucer–shaped landing vehicle will then return to Earth on a dramatic path through Hawaii's skies. Watch it live, here!
In the early morning hours of Tuesday, May 6, debris from Halley's Comet will light up the sky in this year's Eta Aquarid meteor shower. Here's everything you need to know to spot as many meteors as possible.
So, technically, this is what it would look like if the Moon were a disco ball AND orbited Earth at the same distance as the International Space Station, i.e. roughly 420 kilometers (260 miles) above the surface of the Earth. But that doesn't make it any less incredible looking.
We love stories that take us to alien planets and let us explore whole new environments. But not every alien planet is totally realistic, especially given how much we've learned about exoplanets lately. So we asked six experts to tell us the biggest mistakes they see in fictional habitable worlds — and here's what…
Chris Albeluhn's out of work, like all too many Americans. But instead of wasting time on Facebook or sleeping until 3 p.m. like I used to do when between jobs, Albeluhn made an interactive 3D map of the universe using the popular Unreal Engine. The out-of-work developer started raising funds on IndieGoGo and…
The planet closest to the sun better be on its best behavior, because we're watching it. As of last night NASA's Messenger probe is the first man-made satellite ever to orbit the planet Mercury. What do we hope to find?
Astronomers are abuzz over what could be our very first glimpse of a planet being born in the dust surrounding a young star some 350 light-years away from the earth, but don't start passing out cigars just yet.
This week the sun shot off a massive class X solar flare. Its effects on radio broadcasts, electronics, and power are still being felt today, and this is only the beginning.
NASA's Wide-field Infrared Survey Explorer captured this amazing image of the star Zeta Ophiuchi plowing through a radiant dust cloud at 54,000 miles per hour. Why is Zeta Ophiuchi on the run?
Uranus is a cold and distant world that hasn't been seen up close for 25 years. British scientists propose a plan to launch a satellite in that could shed new light on the mysteries of the frozen planet.
Nearly four and a half years after Pluto was demoted from planet to dwarf planet, astronomers are still trying to figure out how big it is. The title of Largest Dwarf Planet in the Solar System hangs in the balance!
Since the mid 1820's stargazers have been watching the skies in early January to catch a glimpse of the annual Quadrantids meteor shower. Are you going to miss out on witnessing a potential 65 to 160 meteors per hour?
Saturn's icy moon Rhea has an oxygen and carbon dioxide atmosphere that is very similar to Earth's. Even better, the carbon dioxide suggests there's life - and that possibly humans could breathe the air.
And now for some much-needed perspective on our place in the universe, courtesy of science and Photoshop. In this image, we see our fiery life-giving orb the Sun, represented as a single pixel. And this is the more flattering picture.
NASA and Microsoft have teamed up to deliver an amazingly detailed view of Mars to Microsoft Research's free Worldwide Telescope application, with images so detailed you can almost see the Google Maps camera cars roaming about the surface.