New Oxygen Preburner Firings a Major Step Toward Rekindling US Hydrocarbon Rocket Engine Leadership

Sub scale oxygen preburner has begun initial firing tests in Sacramento Calif. as part of the U.S. Air Force Hydrocarbon Boost Technology Demonstrator program. Photo Credit: Aerojet Rocketdyne

Sub scale oxygen preburner has begun initial firing tests in Sacramento, Calif., as part of the U.S. Air Force Hydrocarbon Boost Technology Demonstrator program. Photo Credit: Aerojet Rocketdyne

The U.S. Air Force (USAF) and its rocket engine contractor Aerojet Rocketdyne (AJRD) have achieved a major milestone toward a new U.S. state-of-the-art capability to develop […]

PHOTOS: Atlas-V Delivers Lightsail and Air Force X-37B to Orbit Packed With Cubesats and Experiments

The Air Force AFSPC-5 mission launched into clear blue skies from Cape Canaveral Air Force Station on 20 May. On-board was the secretive X-37B Orbital Test Vehicle (its fourth mission) and a variety of cubists and experiments for the NAVY, NRO, USAF and NASA, including the Lightsail test article from The Planetary Society. Photo Credit: Alan Walters / AmericaSpace

The Air Force AFSPC-5 mission launched into clear blue skies from Cape Canaveral Air Force Station today. Onboard is the secretive X-37B Orbital Test Vehicle (its fourth mission) and a variety of cubists and experiments for the NAVY, NRO, USAF and NASA, including the Lightsail test article from The Planetary Society. Photo Credit: Alan […]

PHOTOS: Atlas-V Ready to Launch AFSPC-5 Mission With X-37B Spaceplane and Lightsail Wednesday

A United Launch Alliance Atlas-V 501 rocket stands tall atop Space Launch Complex-41 at Cape Canaveral AFS on May 19, 2015. The Air Force X-37B OTV-4 spaceplane is onboard, as well as the Planetary Society's Lightsail test article, several small satellites for the NAVY and NRO, and a NASA materials science experiment. Liftoff is scheduled for May 20 between 11:05 a.m. EDT and 1:30 p.m. EDT. Photo Credit: Mike Killian / AmericaSpace

A United Launch Alliance Atlas-V 501 rocket stands tall atop Space Launch Complex-41 at Cape Canaveral AFS on May 19, 2015. The Air Force X-37B OTV-4 spaceplane is onboard, as well as the Planetary Society’s Lightsail test article, several small satellites for the NAVY and NRO, and a NASA materials science experiment. Liftoff is […]

Fourth Atlas-V Spaceplane Launch Heralds X-37B Program Shift As Centaur to Deploy Naval Satellites at Higher Inclination

The X-37B Orbital Test Vehicle (OTV) at Vandenberg Air Force Base after completing 674 days in space. A total of three X-37B missions have been completed, totaling 1,367 days on orbit. OTV-4, launching on the AFSPC-5 mission May 20, is more focused on military spaceplane payload development instead of X-37B flight testing of its […]

The Planetary Society's LightSail to Launch Aboard Atlas-V May 20

From The Planetary Society: “The Planetary Society’s LightSail solar sailing spacecraft is scheduled to ride a SpaceX Falcon Heavy rocket to orbit in 2016 with its parent satellite, Prox-1.” Image Credit: Josh Spradling /The Planetary Society (http://sail.planetary.org/gallery/lightsail.html)

The idea of solar sails carrying satellites and humans into space has been something bandied about for […]

PHOTOS: X-37B Spaceplane and Lightsail Stacked Atop Atlas-V for May 20 AFSPC-5 Launch

The Air Force’s AFSPC-5 payload, encapsulated inside a 5-meter diameter payload fairing, is mated to an Atlas V booster inside the Vertical Integration Facility or VIF at Cape Canaveral Air Force Station’s Space Launch Complex-41. Photo Credit: ULA

The rocket tasked with launching the next mission from Cape Canaveral, Fla., is well into its […]

Next Air Force X-37B Flight To Launch May 20 Carrying NASA Materials Science Experiment

Recovery crew members process the X-37B Orbital Test Vehicle at Vandenberg Air Force Base after completing 674 days in space. A total of three X-37B missions have been completed, totaling 1,367 days on orbit. The X-37B will be equipped with a NASA materials exposure experiment with nearly 100 samples focusing on polymers, composites, and […]

Fourth ULA Launch in Three Months Boosts Latest GPS Block IIF to Medium Earth Orbit

Rising into a gloomy ball of low-lying fog, the first Delta-IV of 2015 took flight at 2:36 p.m. EDT Wednesday, 25 March, delivering the ninth Global Positioning System (GPS) Block IIF satellite into orbit. Photo Credit: Mike Killian / AmericaSpace

United Launch Alliance (ULA)—the Centennial, Colo.-based launch services operator of Atlas V, Delta IV […]

First Delta IV of 2015 to Deliver GPS IIF-9 Satellite to Orbit on Wednesday

A Delta IV Medium+ (4,2) booster launches the GPS IIF-6 mission in May 2014. A similar vehicle will deliver GPS IIF-9, later this week. Photo Credit: Alan Walters/AmericaSpace

After three successful flights in as many months—the Mobile User Objective System (MUOS)-3 and Soil Moisture Active Passive (SMAP) satellites, both in January, and most recently […]

Air Force Weather Satellite Space Debris Hazard a Concern

DMSP Air Force weather satellite is depicted in polar orbit near Alaska. Photo Credit: Lockheed Martin

The U.S. Strategic Command’s Joint Space Operations Center (JSpOC) at Vandenberg AFB, Calif., is monitoring a cloud of new space debris in polar orbit to notify operational satellite controllers about potential collision hazards for critical military and civilian […]