Extreme velocities and temperatures makes the return flight to Earth the most perilous part of a space mission.

The Perseverance rover onboard Mars 2020 is our best bet for finding life on the red planet.

Study suggests the rare objects likely came from an early planetesimal with a magnetic core.

A colliding star may have triggered the drastic transformation.

Duckweed is the perfect space food: small, fast-growing and nutritious. By studying how light levels changed the production of radiation-fighting antioxidants, researchers made it even better.

Aligning polar satellites will enable the first ever reliable maps of Antarctic sea-ice thickness.

Neptune-sized planet may be remnant core of a much larger planet.

Mary Jackson was among the African-American women whose story was told in the film Hidden Figures.

Martian meteorites allow scientists here on Earth to decode that planet's geology, more than a decade before the first missions are scheduled to bring rocks back home from Mars.