Saturn's Massive Phoebe Ring Even Larger Than Previously Thought

Image of the Phoebe ring taken in 2009, overlaid in tan colors. The ring is much larger than Saturn's other more visible rings and is also tilted with respect to the other rings. Image Credit: NASA/JPL/U

Image of the Phoebe ring taken in 2009, overlaid in tan colors. The ring is much larger than Saturn’s other more visible rings and is also tilted with respect to the other rings. Image Credit: NASA/JPL/U. Virginia

Saturn is truly the “Lord of the Rings” and one of the most majestic places in the […]

Top Ten US EVA Missions of All Time: No. 1—'One Small Step'

One of the relatively few images of Neil Armstrong at work on the lunar surface, close to Eagle. Photo Credit: NASA

On Sunday, 20 July 1969, the Mission Operations Control Room (MOCR) at NASA’s Manned Spacecraft Center (MSC)—later to become the Johnson Space Center (JSC)—in Houston, Texas, was filled with tension and expectant quiet. […]

Top Ten US EVAs of All Time: No. 2—'What We Came For'

Dave Scott works with the Lunar Roving Vehicle (LRV) on the slopes of Hadley Rille during Apollo 15. Photo Credit: NASA

More than four decades have passed since one of the most brilliant missions ever undertaken in the annals of space science. Apollo 15, launched in July 1971, carried U.S. astronauts Dave Scott, Al […]

Five Weeks to Pluto: The Strange Discovery of Planet X and a World Like No Other (Part 2)

A computer-generated impression of the view from the surface of Pluto. The Sun looks like a very bright star on the sky (upper right), while Charon, Pluto’s biggest satellite looms large near the horizon (at left). NASA’s New Horizons mission will replace our artistic impressions of the planet and its moons with real high-resolution […]

Five Weeks to Pluto: The Strange Discovery of Planet X and a World Like No Other (Part 1)

Artist’s concept of NASA’s New Horizons spacecraft during closest approach to Pluto on July 14. Image Credit: Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute (JHUAPL/SwRI)

In the dark, outer reaches of the Sun’s realm lies a world unlike any other. Discovered in the spring of 1930, Pluto—named by an Oxford schoolgirl, who was […]

'Roger, Houston': Mission Control Center (MCC) Celebrates 50 Years of Spaceflight Operations Support

Fifty years ago, today, on 3 June 1965, the Mission Control Center (MCC) in Houston, Texas, provided primary support for its first human spaceflight. In doing so, it placed Houston permanently on the intergalactic map. Image Credit: William Foster/NASA

Over the last 50 years, Houston—the seat of Harris County and the most populous city […]

Top Ten US EVA Missions of All Time: No. 10—'The Long and the Short'

Jim Voss is pictured at the end of Discovery’s Remote Manipulator System (RMS) mechanical arm, during the longest EVA ever undertaken, in March 2001. Photo Credit: NASA

Over the course of five decades, no fewer than 211 individuals from 10 sovereign nations—Russia, the United States, France, Germany, Japan, Switzerland, Canada, Sweden, China, and Italy—have departed […]

'The Saddest Moment': The Story of America's First Spacewalk (Part 2)

Clasping the cold-gas maneuvering gun in his right hand, and trailed by a snake-like tether, Ed White tumbles over a cloud-speckled Earth during the United States’ first EVA. Photo Credit: NASA

Fifty years ago, in the first week of June 1965, the the United States took a huge step forward in its drive to […]

'Examinations of Some Kind': The Story of America's First Spacewalk (Part 1)

Ed White performs America’s first EVA outside Gemini IV in June 1965. Photo Credit: NASA

Exactly 50 years ago, in the first week of June 1965, the United States took a huge step forward in its drive to land a man on the Moon. Aboard Gemini IV, astronauts Jim McDivitt and Ed White spent […]

Flying (Mostly) Friendly Skies: Northrop Grumman Developing Airplane to Cruise Atmosphere of Venus

Artist’s conception of the Venus Atmospheric Maneuverable Platform (VAMP) aircraft in the atmosphere of Venus. Image Credit: Northrop Grumman artist’s concept

With so much attention now on the rovers and spacecraft at Mars, Saturn, Ceres, comet 67P/Churyumov-Gerasimenko, and, soon, Pluto, it may seem like Earth’s closest planetary neighbor Venus has been forgotten again. But no, […]