On Jan. 31, 1958, Explorer 1 became the first satellite launched by the United States. Its primary science instrument, a cosmic ray detector, was designed to measure the radiation environment in Earth ...

NASA has selected two Earth science missions for development, one focused on studying the atmosphere and the other on terrestrial ecosystems and ice.

NASA has selected UC San Diego's Scripps Institution of Oceanography to lead the Earth Dynamics Geodetic Explorer (EDGE) ...

A NASA planetary defense officer warns thousands of near-Earth asteroids capable of destroying a city remain undetected.

Officials have directed the space agency to pause funds for a host of science missions the White House originally pushed to cancel in its 2026 budget request, according to a letter sent to the ...

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 ...

Earth faces a significant threat from thousands of undetected asteroids capable of destroying cities. NASA's planetary defence chief warns that current systems cannot reliably stop these 'city-killers ...