Thanks to close-up images of the sun obtained during Solar Orbiter's perihelion passage of October 2022, solar physicists have seen how fleeting magnetic fields at the solar surface build up into the solar atmosphere.
Astronomy
Oct 5, 2023
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In a solar system called TRAPPIST-1, 40 light years from the sun, seven Earth-sized planets revolve around a cold star.
Astronomy
Sep 25, 2023
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Data from the James Webb Space Telescope (JWST) has shown that an exoplanet around a star in the constellation Leo has some of the chemical markers that, on Earth, are associated with living organisms. But these are vague ...
Astrobiology
Sep 16, 2023
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A cosmic alignment and a little bit of spacecraft gymnastics has provided a ground-breaking measurement that is helping solve the 65-year-old cosmic mystery of why the sun's atmosphere is so hot.
Astronomy
Sep 15, 2023
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Near Earth's poles, observers of the night sky often behold aurorae, colorful light shows in the upper atmosphere caused by interactions between the solar wind and our planet's magnetosphere. A little closer to the equator, ...
Planetary Sciences
Sep 11, 2023
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Chromium hydride (CrH), a molecule that's relatively rare and particularly sensitive to temperature, is useful as a "thermometer for stars," according to astronomer Laura Flagg, because it's abundant only in a narrow range ...
Astronomy
Aug 28, 2023
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The largest storm in the solar system, a 10,000-mile-wide anticyclone called the Great Red Spot, has decorated Jupiter's surface for hundreds of years.
Planetary Sciences
Aug 11, 2023
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The sun emitted a strong solar flare, peaking at 6:21 p.m. EDT on Aug. 5, 2023. NASA's Solar Dynamics Observatory, which watches the sun constantly, captured an image of the event.
Planetary Sciences
Aug 8, 2023
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The Psyche mission is speeding toward its Oct. 5 launch date, preparing for the last of its launch-preparation milestones.
Space Exploration
Aug 3, 2023
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Physicists at St Petersburg University have studied planetary waves and discovered that they can generate disturbances in the stratosphere causing extreme warming and cooling in the Arctic and mid-latitudes. Numerical modeling ...
Earth Sciences
Aug 2, 2023
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