An Ocean Beyond Earth: Europa Awaits

It’s no secret that Earth’s ocean is filled with life, much of it still a mystery or totally unknown to science. But what about the ocean on other worlds? I’m not talking about sci-fi planets or suspected alien Earths around other stars, but right here in our own solar system, where an ocean even deeper than ours lies…

Dear Jupiter: Use More Sunscreen

It’s the signature accessory of the largest planet in our solar system: Jupiter’s Great Red Spot, an enormous anticyclone over twice the width of our entire planet. Visible in even modest backyard telescopes, the GRS has been churning away for at least several hundred years. But, based on recent analysis of data gathered by the Cassini spacecraft…

Where’s Waldo – er, Philae? Rosetta Captures Bouncing Lander on Camera

On Wednesday, Nov. 12 2014, after over ten years and literally hundreds of millions of miles of travel, ESA’s Rosetta mission successfully put its Philae lander down on the surface of a tumbling comet 316 million miles from Earth. While Philae’s long-awaited landing was deemed a success, if just in that all primary mission science data was…

Surprising Structures Discovered at the Bottom of Uranus

Out in the depths of our solar system, about 1.8 billion miles away from the Sun somewhere between the planets Saturn and far-flung Neptune, orbits the oddball ice giant Uranus – a frigid, thinly-ringed world tipped almost completely on its side and shrouded in both mystery and pale blue-green clouds. Aside from the occasional bright storm clouds…

A Matter of Scale

Note: this post was first published on Feb. 22, 2011. I’m reposting it again today because 1. the video creator has since updated the soundtrack, and 2. it’s still awesome. One of the things that fascinates me so much about the Universe is the incredible vastness of scale, distance and size. On Earth we have…

The 2015 Year in Space Calendars Are Here!

What brings you an entire sidereal year of awesome space news and pictures, each and every day? (Besides me, of course?) That’s right: The Year in Space calendar! Produced by Starry Messenger Press in conjunction with The Planetary Society, the 2015 Year in Space calendar is (like its predecessors) a gorgeous 16″ x 22″ (40.5 cm…

ESA Landed a Robot on a Comet Today!

History has been made! At 11:03 a.m. EST / 16:03 UTC today, Nov. 12 2014, during an event telecast live online, ESA received confirmation from its Philae lander that it successfully touched down and attached to the surface of Comet 67P/Churyumov-Gerasimenko, currently 509.5 million km (316 million miles) from Earth. It is the first time a human-made spacecraft…

Saturn and Titan Show Off Their Crescents

It may not be in color but that doesn’t make it any less beautiful: this stunning image from Cassini shows Saturn and its largest moon Titan – the second-largest moon in our solar system, after Jupiter’s Ganymede – from their night sides, both showing their crescents against the blackness of space. Titan’s crescent nearly wraps all…

NASA’s Turning Up the Heat: Orion’s Upcoming Trial by Fire

On the morning of December 4 2014, at 7:05 a.m. EST, a ULA Delta IV Heavy will thunder into the sky from Cape Canaveral Air Force Station’s Pad 37, its orange-and-white triple-barreled, Boy Scout salute-shaped rocket carrying NASA’s next-generation Orion space vehicle 3,600 miles into space where it will perform a multi-stage orbital test before…

Seven Days Out: ESA’s Historic Landing on a Comet is Just a Week Away

In less than a week, on November 12, 2014, the Philae lander will separate from ESA’s Rosetta spacecraft and descend several kilometers down to the dark, dusty and frozen surface of Comet 67P/Churyumov-Gerasimenko. Its three spindly legs and rocket-powered harpoon are all that will keep the 100-kilogram spacecraft from crashing or bouncing hopelessly back out…

Cassini Spots the Sun Shining on Titan’s Sea

There’s nothing like the beautiful reflection of sunlight off the mirrored surface of a lovely lake… regardless if you’re on Earth or Saturn’s moon Titan! This picture, a mosaic of images acquired by Cassini’s Visual Infrared and Mapping Spectrometer (VIMS) instrument during a flyby on August 21, 2014, shows exactly that: sunglint reflecting off the super-smooth…

Spaceflight is Still Hard: Antares Explosion Destroys Station Supplies

This past Tuesday, October 28, at 6:22 p.m. EDT, an Orbital Sciences Antares rocket lifted off from the shorefront pad at NASA’s Wallops Space Flight Facility in Virginia, the Cygnus vehicle inside its fairing . The third of eight planned launches in Orbital Sciences’ $1.9-billion NASA contract, the Orb-3 mission was to deliver over 5,000 lbs…