On March 23, sky observers marveled at a gorgeous display of northern and southern lights. It was reminder that when our sun gets active, it can spark a phenomenon called "space weather." Aurorae are among the most benign ...
Planetary Sciences
Apr 3, 2023
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116
The Sun emitted a strong solar flare, peaking at 3:16 p.m. ET on Feb. 17, 2023. NASA's Solar Dynamics Observatory, which watches the Sun constantly, captured an image of the event.
Space Exploration
Feb 24, 2023
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34
The sun emitted a strong solar flare, peaking at 1:50 p.m. EST on Jan. 9, 2023. NASA's Solar Dynamics Observatory, which watches the sun constantly, captured imagery of the event.
Astronomy
Jan 10, 2023
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The Sun emitted a strong solar flare, peaking at 7:57 p.m. EDT on Jan. 5, 2023. NASA's Solar Dynamics Observatory, which watches the Sun constantly, captured an image of the event.
Space Exploration
Jan 6, 2023
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63
All stars, including the sun, have a finite lifetime. Stars shine by the process of nuclear fusion in which lighter atoms, such as hydrogen, fuse together to create heavier ones. This process releases vast quantities of energy ...
Astronomy
Oct 28, 2022
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101
The Sun emitted a strong solar flare on Tuesday, May 10, 2022, peaking at 9:55 a.m. EDT. NASA's Solar Dynamics Observatory, which watches the sun constantly, captured an image of the event.
Space Exploration
May 10, 2022
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101
The Sun emitted two solar flares on April 19, 2022, one moderate peaking at 9:35 p.m. EST and one strong peaking at 11:57 p.m. EST. NASA's Solar Dynamics Observatory, which watches the Sun constantly, captured an image of ...
Space Exploration
Apr 20, 2022
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20
The Sun emitted a significant solar flare on April 16, 2022, peaking at 11:34 p.m. EST. NASA's Solar Dynamics Observatory, which watches the Sun constantly, captured an image of the event.
Space Exploration
Apr 18, 2022
1
108
Open the weather app on your phone or glance at the news and you can quickly find a detailed forecast for the weather in your location. The report is likely to affect your behavior for the day: if you put on sandals or snow ...
Planetary Sciences
Dec 13, 2021
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10
On Sep. 1, 1859, solar astronomer Richard Carrington witnessed sunspots that suddenly and briefly flashed brightly before they disappeared. Just before dawn the next day, auroras erupted over most of the Earth, reaching as ...
Space Exploration
Jul 11, 2019
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