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BepiColombo mission 1 step closer to Mercury today
The BepiColombo mission has been maneuvering its way into orbit around Mercury for 8 years. On September 3, it successfully released 2 orbiters.
September 3, 2026
Giant mega-Earth is 23 times more massive than Earth
Astronomers have discovered a new giant mega-Earth exoplanet that is a whopping 23 times as massive as Earth and 2.5 times its diameter.
September 3, 2026
Corona Australis is the sparkling Southern Crown
Corona Australis is a dim constellation lying below the Teapot asterism of Sagittarius. Its sparkling, curving shape befits its name.
September 3, 2026
Roman space telescope has launched! You can adopt a pixel
The Nancy Grace Roman Space Telescope launched on August 30 from the Kennedy Space Center. Want to add your name to a pixel? Find out how here!
September 2, 2026
Fomalhaut is the Loneliest Star once again
Fomalhaut is known as the Loneliest Star because it shines brightly in a dim patch of sky. Saturn joined it in recent years, but is now pulling away.
September 2, 2026
How do lava-world exoplanets keep their atmospheres?
A new study from researchers at Stanford University helps explain how hot lava-world exoplanets orbiting close to their stars can maintain their atmospheres.
September 1, 2026
Will El Niño become supersized? What experts are saying
El Niño is here. But will it become supersized? NOAA says there's a 90% or greater chance for El Niño to become "very strong" between September and January.
September 1, 2026
Sun activity archive for September 2026
Sun activity archive for September 2026. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
September 1, 2026
Pioneer 11: Watching the Saturn Watchers
Pioneer 11 made history 47 years ago today when it became the 1st spacecraft to fly past Saturn, revealing the ringed world up close for the 1st time.
September 1, 2026
Sapphire: September birthstone comes in many colors
Sapphire, the September birthstone, is typically blue, the color caused by small amounts of titanium and iron in the crystal structure.
September 1, 2026
