Joel Achenbach

NASA’s Jet Propulsion Laboratory is reducing its workforce by 5 percent, or 325 employees, amid budget cuts and issues with its Mars Sample Return program.

New observations of distant galaxies have intensified a debate that scientists call the Hubble Tension.

The tightening relationship between Donald Trump and Space X CEO Elon Musk has caught the attention of space policy analysts wondering about U.S. aspirations to get to Mars.

Scientists are eager to see if Europa's subsurface ocean could support life, as NASA's Europa Clipper is scheduled to begin its journey.

Scientists are eager to see if Europa's subsurface ocean could support life, as NASA's Europa Clipper is scheduled to begin its journey.

LiDAR and artificial intelligence are just some of the technological advances that make discovery faster and easier.

Genetic evidence from a new report suggests the coronavirus pandemic most likely spilled over from animals in the Wuhan market.

NASA is not focused enough on the future, fails to think strategically and has a mismatch between ambitions and budget, says a sweeping report by aerospace experts.

The “Question Mark Pair” is an optical illusion created by two galaxies that astronomers have observed in deep space with the James Webb Space Telescope.

Officials say the aircraft was illegally purchased and smuggled out of Florida. Its seizure reflects growing tensions between the two countries.