The International Astronomical Union defines a planet as a celestial body that orbits the sun, is massive enough that gravity has forced it into a spherical shape, and has cleared away other objects ...

The Artemis III mission will be the first human mission to the surface of the Moon in the 21st Century, and will build on the legacy of Apollo to usher in the modern era of human exploration and ...

The National Academies of Sciences, Engineering, and Medicine are private, nonprofit institutions that provide expert advice on some of the most pressing challenges facing the nation and world. Our ...

Who’d have thought such a tiny planet would stir up such a big controversy? Everyone seems to have an opinion on the recent vote by the International Astronomical Union to change the official ...

NASA is soliciting applications and nominations for members of the Arctic-Boreal Vulnerability Experiment (ABoVE) field campaign Science Definition Team (SDT). Response will take the form of a Letter ...

Artemis astronauts engage in lunar surface operations a short distance from a generic lander and rover in this NASA artist’s concept. WASHINGTON — A report released by NASA Dec. 7 outlined the science ...