New models of how the geomagnetic field that shields the Earth's atmosphere from cosmic rays has changed over tens of thousands of years can help us understand how the climate has changed over a similar timescale.
Planetary Sciences
Jun 6, 2023
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8
People across the UK, from the Shetland Islands to Somerset and from Norfolk to Northern Ireland, have been treated to a stunning display of the aurora borealis or northern lights recently. But what causes this beautiful ...
Planetary Sciences
Mar 3, 2023
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15
The convergence of two spacecraft at Venus in August 2021 has given a unique insight into how the planet is able to retain its thick atmosphere without the protection of a global magnetic field.
Space Exploration
Jan 26, 2023
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140
It seems logical enough that bad weather can sometimes cause birds to become disoriented during their annual fall migrations—causing them to wind up in territory they're unaccustomed to. But why, even when weather is not ...
Plants & Animals
Jan 13, 2023
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93
This video chronicles solar activity from Aug. 12 to Dec. 22, 2022, as captured by NASA's Solar Dynamics Observatory (SDO). From its orbit in space around Earth, SDO has steadily imaged the sun in 4K x 4K resolution for nearly ...
Astronomy
Jan 9, 2023
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9
The Sun is much more than just a source of light for Earth—it's a dynamic and complex star, with storms, flares, and movement causing it to change constantly. Magnetic fields govern most of the solar activity we can observe ...
Astronomy
Nov 22, 2022
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288
Solar Orbiter has spotted a "tube" of cooler atmospheric gases snaking its way through the sun's magnetic field. The observation provides an intriguing new addition to the zoo of features revealed by the ESA-led Solar Orbiter ...
Astronomy
Nov 14, 2022
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20
Roughly a half-century ago, astronomers realized that the powerful radio source coming from the center of our galaxy (Sagitarrius A*) was a "monster" black hole. Since then, they have found that supermassive black holes (SMBHs) ...
Astronomy
Nov 1, 2022
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108
The sun was in a good mood this week, or at least that's what it looked like in a photo published by NASA.
Astronomy
Oct 28, 2022
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48
Researchers studying intermediate to large earthquakes in California have discovered detectable changes in the local magnetic field that occur 2–3 days before an earthquake. In a study now published in Journal of Geophysical ...
Earth Sciences
Oct 7, 2022
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