The sun is the most important source of energy for sustaining life on Earth, but it gives us a lot more than just light and heat. It also gives us solar storms.
Astronomy
Mar 29, 2021
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For well over a decade, ESA's SMOS satellite has been delivering a wealth of data to map moisture in soil and salt in the surface waters of the oceans for a better understanding of the processes driving the water cycle. While ...
Astronomy
Mar 25, 2021
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30
About 17 years ago, J. Martin Laming, an astrophysicist at the U.S. Naval Research Laboratory, theorized why the chemical composition of the Sun's tenuous outermost layer differs from that lower down. His theory has recently ...
Astronomy
Mar 2, 2021
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Sunspots were first seen by Galileo, and in the eighteenth century Rudolf Wolf concluded from his study of previous observations that there was a roughly eleven-year solar cycle of activity. In 1919 the astronomer George ...
Space Exploration
Jan 11, 2021
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These 366 images of the sun were made by ESA's Proba-2 satellite in 2020.
Space Exploration
Jan 7, 2021
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The MIAMI-2—Microscopes and Ion Accelerators for Materials Investigations—facility has helped Dr. Matheus Tunes investigate a new alloy that will harden aluminum without increasing its weight significantly.
Materials Science
Dec 7, 2020
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41
More than 40 years since they launched, the Voyager spacecraft are still making discoveries.
Astronomy
Dec 3, 2020
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478
The sun has entered its 25th solar cycle and is about to wake up. For the last few years our star has been pretty sleepy, with few sunspots, bright flares or massive ejections of magnetized plasma emanating from its surface. ...
Astronomy
Oct 30, 2020
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557
New research shows that sunspots and other active regions can change the overall solar emissions. The sunspots cause some emissions to dim and others to brighten; the timing of the changes also varies between different types ...
Astronomy
Oct 12, 2020
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155
Modeling of an extreme space weather event that narrowly missed Earth in 2012 shows it could have been even worse if paired with another event.
Astronomy
Sep 29, 2020
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