An astronomer discovered an asteroid approximately 2 hours before it struck Earth’s atmosphere over the Arctic Ocean...
EarthSky
Artist’s conception of a starship – called the Starshot Lightsail – accelerating away from Earth. The craft...
View larger. | Orbits of Earth and near-Earth asteroid 2022 ES3, via Virtual Telescope. Reprinted from the...
Astronomers said in late February 2022 that they believe they’ve found the closest pair of supermassive black...
Clockwise from left: The propulsion module for NASA’s Europa Clipper is the main body of the spacecraft,...
