Space

The true shape of the Ring Nebula

Hubble has been doing some interesting work with nebulae recently, it seems. About a month ago, we saw new images of the Horsehead Nebula in the infrared spectrum, revealing new details of the famous gas formation.

The newest nebula to get the fine-detail treatment is the equally famous Ring Nebula. Combining visible-light images from Hubble with infrared data from the ground-based Large Binocular Telescope in Arizona has revealed that the structure of the nebula is more complex than was previously believed. … Read more

Watch the planets dance in a triple conjunction

Triple planetary conjunctions are relatively rare in the night sky, but astronomers are about to be in for a real treat.

The three brightest planets in our solar system as seen from Earth -- Jupiter, Mercury, and Venus -- will be coming together in the sky, "dancing" around each other over the course of several nights, starting Friday, May 24.

If we're lucky, we see a triple conjunction once every two years or so. The most recent was in May 2011; the next won't be until October 2015.

Because the planets in this conjunction are so bright, the dance will be visible to the naked eye, even in densely populated areas. But if you have access to a telescope or binoculars, so much the better. … Read more

If Earth had rings like Saturn, the sky would look like this

The sunsets would be impossibly beautiful. The evening sky would glitter with a thousand silver arcs. If Earth had rings like Saturn, you'd only have to look up to get a spectacular show.

Veteran astronomy artist Ron Miller has created some stunning views of what our skies would look like if Earth were a ringed planet, and they make me want to launch a Kickstarter campaign to make it happen.

In a recent article for sci-fi blog io9, Miller presented his wild visions of a ringed Earth and what the sky would look like from various places on our … Read more

NASA funds attempt at 3D food printer for pizza

"Star Trek" food replicators will always be the holy grail of space-snack technology, but we could be edging a step closer to the dream thanks to the work of mechanical engineer Anjan Contractor with Systems and Materials Research in Austin, Texas.

Systems and Materials Research recently received a $125,000 grant from NASA to make a pizza. OK, it's a little more complicated than that. Contractor already created a proof-of-concept printer that can print chocolate onto a cookie. His next goal is to print out dough and cook it while printing out sauce and toppings.… Read more

Boom! NASA captures massive moon explosion on video

It's a good thing you weren't standing on the moon's Mare Imbrium crater on March 17. You might have been ground into space dust. A meteoroid "the size of a small boulder" crashed into the lunar surface and exploded with a flash so bright, it was visible to the naked eye from Earth.

NASA has been keeping an eye on the moon for eight years, looking for explosions caused by meteoroids. The space agency has seen hundreds of detectable impacts, but none quite so spectacular as this one. "For about one second, the impact site was glowing like a fourth magnitude star," NASA says.… Read more

A look back at NASA's planet-pinpointing space 'scope

NASA announced this week that a key piece of gear on its Kepler space telescope has run into trouble. And though the space agency hasn't given up on a jump-start, the mission may well be at risk.

It's already gone well beyond its planned duration, however, and presented us with many fascinating discoveries.

In this gallery, we take a look back at that mission -- at Kepler's intriguing quest to find Earth-like, life-friendly planets among the Milky Way's many stars.

NASA plans asteroid mission. First stop: Bennu

NASA's plan to go poking around on an asteroid, with the ultimate goal of snagging one of the space rocks and towing it closer to Earth, is moving forward, and a specific asteroid has been chosen to visit and sample in the next few years.

NASA has announced that the Origins-Spectral Interpretation Resource Identification Security Regolith Explorer (Osiris-Rex) passed a key confirmation review Wednesday, approving the spacecraft to move into development phase. Translation: we're building a new spaceship, y'all!… Read more

Mars rover Opportunity hits new record for miles driven in space

The plucky little Mars rover Opportunity has proven itself to be the Marco Polo of space. This extraterrestrial robot has set the new record for miles explored by a NASA vehicle in a world other than Earth, according to NASA.

On its 3,309th Martian day on the planet, Opportunity drove 263 feet along the western rim of the Endeavour Crater and broke records by putting its total distance traveled on Mars at 22.22 miles.

The previous record was set 40 years ago by Apollo 17 astronauts Eugene Cernan and Harrison Schmitt when they visited the moon for a … Read more

Enormous asteroid to zip by Earth

A giant asteroid will pass by Earth on May 31, according to NASA, but hold off before you start browsing survival gear on Amazon.

The 1.7-mile long asteroid, labeled 1998 QE2, will come within 3.6 million miles of Earth, or about 15 times the distance between our planet and the moon. It's a golden opportunity for astronomers, who plan to extensively image the temporary visitor.… Read more