A Car-Sized Asteroid Had a Near-Miss with Earth
The asteroid that came as close as 1,830 miles (2,950 km) to Earth was only noticed six hours later.
Some Astronomers Think Betelgeuse Dimmed Because it “Sneezed”. And it Might be Getting Ready to do it Again
Betelgeuse, the tenth brightest star in the night sky and the second brightest in the constellation Orion, has been behaving a little oddly lately. Beginning in December of 2019, researchers from Villanova University noticed the red supergiant was dimming noticeably. This trend continued into the new year, with Betelgeuse dimming […]
Watch live Tuesday: SpaceX launching Starlink, SkySat satellites
A SpaceX Falcon 9 rocket will launch 58 Starlink satellites and three Planet SkySats on Tuesday, Aug. 18, and you can watch it all live here, courtesy of SpaceX.
Death Valley tops 130 F, setting possible global heat record
California’s Death Valley recorded what may be its hottest ever temperature on Sunday (Aug. 16) — a blazing 130 degrees Fahrenheit (54.4 degrees Celsius).
Armagno becomes the U.S. Space Force’s first female general officer
Armagno was commissioned into the Space Force and promoted to three-star general Aug. 17 in a ceremony at the Pentagon.
The Last Supernovae
A supernova is a powerful event. For a brief moment in time, a star shines as bright as a galaxy, ripping itself apart in a last, desperate attempt to fight against its gravity. While we see supernovae as rare and wondrous things, they are quite common. Based on observations of […]
Scientists determine ‘Oumuamua isn’t made from molecular hydrogen ice after all
The debate over the origins and molecular structure of ‘Oumuamua continued today with an announcement in The Astrophysical Journal Letters that despite earlier promising claims, the interstellar object is not made of molecular hydrogen ice after all.
NASA researchers track slowly splitting ‘dent’ in Earth’s magnetic field
A small but evolving dent in Earth’s magnetic field can cause big headaches for satellites.