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An image from the Heliospheric Imager aboard NASA’s STEREO spacecraft shows the star Betelgeuse, circled. For several weeks in 2020, STEREO was the only observatory making measurements of Betelgeuse because of the spacecraft’s unique position in space.

Carmen Guerra-Garcia, an assistant professor of aeronautics and astronautics at MIT, is the lead author of a new study analyzing the effect of wind on underground corona discharges.

Scientists Suggest Stellar "Sneeze" as Reason for Betelgeuse's Massive Dimming in Early 2020 and Say It May Be Dimming Again, Roughly 400 Days Early

Infographic published with permission from the authors of “Increasing anthropogenic methane emissions arise equally from agricultural and fossil fuel sources.”

Lensed view of SPT0418-47

Illustration of NASA’s Transiting Exoplanet Survey Satellite (TESS) at work.

Mauritius oil spill

Artist's rendering of NASA's Lunar Reconnaissance Orbiter.

Images of Occator Crater, seen in false-color, were pieced together to create this animated view.

These four Daya Bay detectors are submerged in a pool of ultrapure water that helps to shield against naturally occurring radiation.