Orbiting a nearby star, the new planet is the smallest identified so far by the TESS mission.

Rocket fuels are so carcinogenic that people who work with them need to suit up as if they were going to space. A cleaner safer option may be possible.

Symposium featuring former astronauts and other Apollo mission luminaries examines the program’s legacy.

Researchers say new facilities in space should be available to scientists from any country.

Brent Minchew has flown presidents and foreign dignitaries on Marine One. Today he studies how ice sheets evolve and respond to changing climate.

Climate-driven changes in phytoplankton communities will intensify the blue and green regions of the world’s oceans.

NASA’s OSIRIS-REx sample-return spacecraft, carrying MIT instrument, arrived at asteroid in December; now begins the science to select a sampling location.

Measurements indicate a dense, gaseous, “sub-Neptune” world, three times the size of Earth.

Researchers design CubeSats with lasers to provide steady reference light for telescopes investigating distant planets.

Platform offers the precision that shoebox-sized CubeSats need to beam down hefty data packets.