NASA has disqualified one of the two proposals for a large astrophysics mission, a decision the project’s leader blames on ...

NASA is canceling the AXIS X-ray space telescope mission concept, saying it failed to meet key requirements. But the project leader thinks there's another reason.

NASA confirmed that nuclear-micropowered probes (NMPs) using tritium betavoltaic power technology is possible. A new study will raise from a valid concept to a proof of concept experiment.

How NASA's F-15 ACTIVE program tested thrust vectoring and adaptive controls to improve performance of future ...

What would it take to accelerate to Interstellar space by a NASA spacecraft deliberately, within a time that is short enough that the people who designed it and studied it will be available to analyze ...

NASA has announced significant modifications to its contract with Sierra Space for the Dream Chaser spacecraft, effectively scrapping guaranteed resupply missions to the International Space Station ...

The Orbiting Carbon Observatory (OCO) 2 spacecraft is one of many science missions at NASA targeted for termination in the 2026 budget request. Credit: NASA/JPL-Caltech WASHINGTON — Comments by NASA’s ...