Gullies on Mars
Gullies on Mars form during the winter, fluidized by carbon dioxide frost, and scientists monitor sites on the planet for activity throughout the year. In this mid-winter scene, a Martian gully is almost…
NASA Selects Proposals to Study Volatile Stars, Galaxies, Cosmic Collisions
NASA has selected proposals for four missions that would study cosmic explosions and the debris they leave behind, as well as monitor how nearby stellar flares may affect the atmospheres…
Quasar Tsunamis Rip Across Galaxies
Using the unique capabilities of NASA’s Hubble Space Telescope, a team of astronomers has discovered the most energetic outflows ever witnessed in the universe. They emanate from quasars and tear…
Solar Energy Tracker Powers Down After 17 Years
After nearly two decades, the Sun has set for NASA’s Solar Radiation and Climate Experiment (SORCE), a mission that continued and advanced the agency’s 40-year record of measuring solar irradiance and studying…
Thousands Apply to Join NASA’s Artemis Generation, #BeAnAstronaut
More than 12,000 people have applied to join NASA’s next class of astronauts, demonstrating strong national interest to take part in America’s plans to explore the Moon and take humanity’s…