Two Years From Today: Get Ready For the Great American Solar Eclipse of 2017

A total eclipse of the Sun, showing the Sun's atmosphere, or corona, stretching out, which is not normally visible during daylight. Photo Credit: Fred Espenak/NASA's Goddard Space Flight Center

A total eclipse of the Sun, showing the Sun’s atmosphere, or corona, stretching out into space, which is not normally visible during daylight. Photo Credit: Fred Espenak/NASA’s Goddard Space Flight Center

Exactly two years from today, on Aug. 21, 2017, a rare total solar eclipse will be seen again in the skies of the […]

Navy's MUOS-4 Encapsulated for Launch on ULA's Most Powerful Atlas-V Rocket Aug. 31

MUOS-4, the next satellite scheduled to join the U.S. Navy’s Mobile User Objective System (MUOS) secure communications network, has been encapsulated in its protective launch vehicle fairing for its Aug. 31 launch from Cape Canaveral Air Force Station. Photo Credit: ULA

The fourth in a Lockheed Martin-built, five-ship fleet for a next-generation, narrowband tactical […]

SLS Development RS-25 Engine Ignites for Successful Full Duration Test Fire #6

The world's most efficient rocket engine came to life again today, unleashing 512,000 pounds of thrust and a thunderous roar across southern Mississippi and NASA's Stennis Space Center during a 535-second full power test fire. The same engine that powered the space shuttle so reliably for years, the RS-25, will again be employed for NASA's Space Launch System, upgraded to meet the new requirements for what will become the most powerful rocket in history. Photo Credit: Mike Killian / AmericaSpace

The world’s most efficient rocket engine came to life again today, unleashing 512,000 pounds of thrust and a thunderous roar across southern Mississippi and NASA’s Stennis Space Center during a 535-second full power test fire. The same engine that powered the space shuttle so reliably for years, the RS-25, will again be employed for […]

Brigadier General Wayne Monteith Takes Over as New 45th Space Wing Commander

Lt. Gen. John W. "Jay" Raymond, commander, 14th Air Force (Air Forces Strategic) and Joint Functional Component Command for Space, presents Brig. Gen. Wayne Monteith, 45th Space Wing commander during a change of command ceremony, Aug. 4, 2015, at Patrick Air Force Base, Florida. Changes of command are a military tradition representing the transfer of responsibilities from the presiding officials to the upcoming official. Photo and Caption Credit: U.S. Air Force/Matthew Jurgens (Released)

Lt. Gen. John W. “Jay” Raymond, commander, 14th Air Force (Air Forces Strategic) and Joint Functional Component Command for Space, presents Brig. Gen. Wayne Monteith, 45th Space Wing commander during a change of command ceremony, Aug. 4, 2015, at Patrick Air Force Base, Florida. Changes of command are a military tradition representing the transfer […]

Historic First Close-Ups From New Horizons Reveals Dramatic Worlds Billions of Miles Away

Pluto’s largest moon Charon (left) has a surprising youthful and varied terrain, with cliffs, troughs, and a dark marking nicknamed “Mordor” in the moon’s north polar region. New close-up images of a region near Pluto’s equator (right) reveal a giant surprise: a range of youthful mountains rising as high as 11,000 feet (3,500 meters) […]

New Horizons Phones Home After Historic Pluto Flyby, World Awaits First Close-Up Images

The New Horizons mission team celebrates New Horizons' closest approach to Pluto at 7:49 a.m. EDT on July 14, 2015. Photo Credit: Elliot Severn / AmericaSpace

The New Horizons mission team celebrates New Horizons’ closest approach to Pluto at 7:49 a.m. EDT on July 14, 2015. Photo Credit: Elliot Severn / AmericaSpace

Throughout most of human history the worlds we share our solar system with were nothing more than points of light in the night sky, observed by astronomers for […]

In Just a Few Hours, New Horizons Will Fulfill Its Destiny With First Up-Close Exploration of Pluto

On July 11, 2015, New Horizons captured a world that is growing more fascinating by the day. For the first time on Pluto, this view reveals linear features that may be cliffs, as well as a circular feature that could be an impact crater. Rotating into view is the bright heart-shaped feature that will be seen in more detail during New Horizons’ closest approach on July 14. The annotated version includes a diagram indicating Pluto’s north pole, equator, and central meridian. Credits: NASA/JHUAPL/SWRI

A portrait from the final approach. Pluto and Charon display striking color and brightness contrast in this composite image from July 11, showing high-resolution black-and-white LORRI images colorized with Ralph data collected from the last rotation of Pluto. Color data being returned by the spacecraft now will update these images, bringing color contrast into […]

Flight Plan for New Horizons' Historic Pluto Flyby Uploaded to Spacecraft as Surface Details Begin to Emerge

New Horizons scientists combined the latest black and white map of Pluto’s surface features (left) with a map of the planet’s colors (right) to produce a detailed color portrait of the planet’s northern hemisphere (center). Photo Credits: NASA/JHUAPL/SWRI

New Horizons scientists combined the latest black-and-white map of Pluto’s surface features (left) with a map of the planet’s colors (right) to produce a detailed color portrait of the planet’s northern hemisphere (center). Credits: NASA/JHUAPL/SWRI

New Horizons is now just 11 days from its historic flyby exploration of the Pluto system, some three billion miles […]

Just Days Before Historic New Horizons Flyby, SOFIA Makes Observations of Pluto

From NASA: "Image is an artist's conception of the Pluto occultation seen close-up, not a photo." NASA's SOFIA jetliner recently observed Pluto during an occultation, prior to New Horizons' historic flyby. Image Credit: NASA

From NASA: “Image is an artist’s conception of the Pluto occultation seen close-up, not a photo.” NASA’s SOFIA jetliner recently observed Pluto during an occultation event, prior to New Horizons’ historic flyby. Image Credit: NASA

In a year brimming with ongoing discoveries about distant, unknown worlds, including the Solar System’s planets and a comet, […]

New Horizons Is GO for Best Flight Path to Pluto, Mission Team Determines No Hazards Ahead

These images show the difference between two sets of 48 combined 10-second exposures with New Horizons' Long Range Reconnaissance Imager (LORRI) camera, taken at 8:40 UTC and 10:25 UTC on June 26, 2015, from a range of 21.5 million kilometers (approximately 13 million miles) to Pluto. The known small moons, Nix, Hydra, Kerberos and Styx, are visible as adjacent bright and dark pairs of dots, due to their motion in the 105 minutes between the two image sets. Credits: NASA/JHU-APL/SwRI

These images show the difference between two sets of 48 combined 10-second exposures with New Horizons’ Long Range Reconnaissance Imager (LORRI) camera, taken at 8:40 UTC and 10:25 UTC on June 26, 2015, from a range of 21.5 million kilometers (approximately 13 million miles) to Pluto. The known small moons, Nix, Hydra, Kerberos and […]