October 4, 1957: Sputnik beeps out a cheerful declaration of survival in the harshest of environments as the first artificial satellite to successfully orbit the Earth. »
This web of lights is one of the most ancient cities in the world, seen from 249 miles above the Earth. Athens, Greece, is the ancient home of Plato and Aristotle, but in this photo taken from the International Space Station, it’s a sprawling modern metropolis. »
This past Monday, people from around the world aimed their cameras upwards in hopes of catching a glimpse of the “blood moon” lunar eclipse. But as this 19th century manuscript shows, it’s a phenomenon that’s been chronicled long before the advent of camera phones and telescopic lenses. »
The Rosetta spacecraft has taken hundreds of stunning photographs of Comet 67P/Churyumov-Gerasimenko over the past year, but a portion of the comet was obscured due to its odd seasonal shifts. Now, thanks to a special camera aboard Rosetta, scientists have created a sketch of its elusive dark side. »
In another reminder that the Red Planet features a complex and active surface, the HiRISE camera aboard the Mars Reconnaissance Orbiter has captured an image of a “dry ice avalanche” streaming down a cliff.
Every time the Curiosity Rover drills into Mars, it creates a beautiful dime-sized hole and a pile of powdered rock just waiting for analysis. Here’s why these drill holes are so important—and all the technology that makes them happen. »
NASA announced the finalists for its next round of planetary explorations. There were the usual suspects—Venus, Jupiter’s asteroids—and, then, there was this: An asteroid, composed almost entirely of (possibly magnetic) metal, with a crust literally beaten away by interstellar collisions, named Psyche. Pardon? »
Our fly-by of Ceres continues to give us things to wonder over, like this topographic map which has revealed something quite strange about the dwarf planet—actually a couple of things. »
When the European Space Agency’s Rosetta spacecraft sent back the first images of Comet 67P/Churyumov–Gerasimenko, scientists were surprised by how much it looked like a rubber ducky. A new analysis finally explains how this comet acquired its distinctive shape. »
Got plans for the weekend? You do now, friend! There’s a Supermoon Eclipse on Sunday night into Monday morning—and we’re all going to watch it. Here’s how, when, and also why to catch the Supermoon Lunar Eclipse. »
Discovering life on another planet, only to contaminate that world with our own pesky microbes, is one of NASA’s nightmare scenarios. To find out whether single-celled Earthlings can hitchhike to Mars and survive on the Red Planet’s surface, NASA is going to see how they like it 120,000 feet up.
Thirty-six years ago this week, an American Vela Hotel satellite detected an atmospheric explosion over the southern Indian Ocean near the Prince Edward Islands. It was a strange event that remains controversial to this very day.