Japan’s HTV-4 cargo vehicle has departed the International Space Station (ISS) ahead of a fiery plunge back to Earth. The spacecraft delivered vital supplies both for the crew and the Station itself ...

A Japanese H-2B rocket launches the HTV-4 (Kounotori 4) robotic cargo ship toward the International Space Station on Aug. 4, 2013 Japan Standard Time (Aug. 3, 2013 EDT/GMT) from Tanegashima Space ...

The I in ISS is for “international” (the two S’s are for “station” and “space,” not necessarily in that order). Many countries contribute to the orbiting outpost, which means investing money, research ...

At 7:45 a.m. PDT, an unmanned glider was launched from Vandenberg Air Force Base in California aboard a Minotaur 4 rocket. Overseen by DARPA, the Defense Advanced Research Projects Agency, the glider, ...

Japan’s HTV-6 cargo vehicle has completed its destructive re-entry on Monday, February 6, following its departure the International Space Station (ISS) over a week ago. The spacecraft performed ...

DARPA has released the findings from an independent engineering review board on what caused the Hypersonic Technology Vehicle (HTV-2) to fail nine minutes into its August 11, 2011 test flight. On that ...

The first - and perhaps only - video footage of the ill-fated second test-flight of DARPA's Falcon Hypersonic Technology Vehicle 2 (HTV-2) has been released. Shot with a handheld camera by a ...

The HTV-4 (Kounotori 4) cargo ship built by Japan's space agency is in docking position at International Space Station in this still from a NASA TV broadcast on Aug. 9, 2013. The spacecraft carried ...