Four Weeks to Pluto: From a Point of Light to a Real World (Part 2)

Artist’s conception of Pluto and Charon. Image Credit: ESO

Thirty days from now, on 14 July, a machine fashioned by human hands will speed silently past one of the last great unexplored wildernesses of our Solar System. NASA’s New Horizons spacecraft, launched 9.5 years ago, is close to the culmination of its mission to […]

'The Sultans of Space': 30 Years Since the Multi-Cultural Mission of STS-51G (Part 2)

Pictured on Discovery’s aft flight deck, the STS-51G crew featured three discrete sovereign nations for the first time in shuttle history. Front row, from left, are John Creighton, Shannon Lucid, and Dan Brandenstein, with Sultan Abdul-Aziz Al-Saud, Steve Nagel, John Fabian, and Patrick Baudry in the background. Photo Credit: NASA

Thirty years ago, on […]

Four Weeks to Pluto: From a Point of Light to a Real World (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 a little more than four weeks’ time, on 14 July, NASA’s New Horizon spacecraft will sweep past the dwarf planet Pluto, its large binary companion Charon, and […]

'The Sultans of Space': 30 Years Since the Multi-Cultural Mission of STS-51G (Part 1)

By the end of his seven days in space, Sultan Abdul-Aziz Al-Saud had given up looking for his own country, or even his own continent, and came to realize that all humans belonged to just “One World.” It is a message which continues to resonate today. Photo Credit: NASA

Three decades ago, on 17 […]

After 28 Weeks in Orbit, Multi-National Soyuz TMA-15M Crew Returns Safely to Earth

The Soyuz TMA-15M spacecraft is seen as it lands with Expedition 43 commander Terry Virts of NASA, cosmonaut Anton Shkaplerov of the Russian Federal Space Agency (Roscosmos), and Italian astronaut Samantha Cristoforetti from European Space Agency (ESA) near the town of Zhezkazgan, Kazakhstan on Thursday, June 11, 2015. Virts, Shkaplerov, and Cristoforetti are returning […]

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. […]

Second-Longest Space Station Expedition to End Thursday

The Soyuz TMA-15M crew, clad in their Sokol (Falcon) launch and entry suits, will return to Earth on Thursday, after more than 199 days in orbit. Photo Credit: European Space Agency (ESA)

The Soyuz TMA-15M crew, clad in their Sokol (Falcon) launch and entry suits, will return to Earth on Thursday, after more than 199 days in orbit. Photo Credit: European Space Agency (ESA)

After more than 28 weeks aloft, the “core” of Expedition 43—the 43rd crew to live and work aboard the International Space Station […]

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 […]

Top Ten US EVA Missions of All Time: No. 3—’Repackage Our Margin’

Astronaut Story Musgrave is positioned to replace components at the end of Endeavour’s Remote Manipulator System (RMS) mechanical arm on STS-61 in December 1993. Photo Credit: NASA

More than two decades have passed since one of the most spectacular EVA missions in U.S. history: the long-awaited first servicing of the Hubble Space Telescope (HST). […]

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 […]