NASA Satellite’s Lone View of Betelgeuse Reveals More Strange Behavior
For several weeks in summer 2020, NASA’s Solar and Terrestrial Relations Observatory, or STEREO, had the solar system’s best view of the star Betelgeuse, whose extreme dimming over the past…
Hubble Catches a Ring of Stellar Wildfire
NGC 1614, captured here by the NASA/ESA Hubble Space Telescope, is an eccentrically shaped galaxy ablaze with activity. The galaxy resides about 200 million light-years from Earth and is nestled…
Capturing an Avalanche on Mars
Hi-RISE, the High-Resolution Imaging Science Experiment camera aboard NASA’s Mars Reconnaissance Orbiter (MRO) captured this avalanche plunging down a 1,640-foot-tall (500-meter-tall) cliff on May 29, 2019. The image also reveals layers at Mars’…
Citizen Scientists Discover Dozens of New Cosmic Neighbors in NASA Data
We’ve never met some of the Sun’s closest neighbors until now. In a new study, astronomers report the discovery of 95 objects known as brown dwarfs, many within a few…
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. Earth’s magnetic field acts like a protective shield around the planet, repelling and trapping charged…