September 8, 2025
[Alex on EARTHSKY.ORG] This pattern in nature – auroras increasing twice a year – is one of the earliest patterns ever to be observed and recorded by scientists.
A dazzling natural light display, auroras (also known as the Northern and Southern Lights) occur when charged particles from the Sun interact with Earth’s magnetic field. These colorful lights, often seen in polar regions, provide a stunning reminder of the Sun’s influence on our planet’s atmosphere.
March 1, 2025
Occurs on Thursday, March 20, 2025, at 9:01 UTC • 5:01 a.m. EDT • 2:01 a.m. PDT
October 31, 2024
[Alex on EARTHSKY.ORG] Sun activity archive for October 2024. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
September 28, 2024
[Alex on EARTHSKY.ORG] Sun activity archive for September 2024. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
September 22, 2024
The Equinox occurs on Sunday, September 22, 2024, at 12:43 UTC • 8:43 a.m. EDT • 5:43 a.m. PDT.
June 1, 2024
[Alex on EARTHSKY.ORG] Sun activity archive for May 2024. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
April 1, 2024
[Alex on EARTHSKY.ORG] Sun activity archive for March 2024. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
March 19, 2024
The 2024 March Equinox happens on Tuesday, March 19, 2024, at 11:06 p.m. EDT • 8:06 p.m. PDT (3:06 UTC on Wednesday, March 20, 2024)
September 18, 2023
Get ready for Fall or Spring depending on where you live. The Equinox occurs on Saturday, September 23, 2023 at 06:50 UTC (2:50 a.m. EDT • Friday, September 22, 2023 at 11:50 p.m. PDT).
September 1, 2023
[Alex on EARTHSKY.ORG] Sun activity archive for September 2023. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
March 31, 2023
[Alex on EARTHSKY.ORG] Sun activity archive for October 2022. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
September 2, 2022
The Equinox occurs on September 23, 2022 at 01:03 UTC (Thursday, September 22, 2022 at 9:03 p.m. EDT • 6:03 p.m. PDT).