Q&A with Keith Gendreau, principal investigator of the first X-ray space communications experiment (members only)

The ISS Deorbit Vehicle, or DV, will be a custom-built, one-of-a-kind spacecraft needed to make sure the space station re-enters the atmosphere at the precise place and in the proper orientation to insure any wreckage that survives the 3,000-degree heat of re-entry will crash harmlessly into the sea.

SpaceX will perform a multi-hour experiment on the second stage of a Falcon 9 rocket after the launcher deploys a Dragon supply ship on the way to the International Space Station Thursday, gathering thermal data and other information to verify the vehicle’s ability to perform long-duration missions and inject payloads into demanding, high-energy orbits.

In case the the sight of a large rocket plummeting back to Earth, only to be slowed in the last seconds by a puff of thrust, hasn’t lost its novelty yet, SpaceX and Blue Origin have released dramatic videos showing their recent powered rocket landings from new angles.