March 18, 2026
Mark your calendars: The March Equinox arrives on Friday, March 20, 2026 at 14:46 UTC (10:46 AM EDT | 7:46 AM PDT).
February 16, 2026
February 16, 2026
February 1, 2026
[Alex on EARTHSKY.ORG] Sun activity archive for February 2026. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
January 1, 2026
On January 3, 2026, at 17:15 UTC (12:15 p.m. EST or 9:15 a.m. PST), Earth's orbit will be at our closest point to the Sun for the year.
January 1, 2026
[Alex on EARTHSKY.ORG] Sun activity archive for January 2026. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
December 20, 2025
Mark your calendars: The December Solstice arrives on Sunday, December 21, 2025, at 15:03 UTC (10:03 am EST | 7:03 am PST).
December 1, 2025
[Alex on EARTHSKY.ORG] Sun activity archive for December 2025. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
November 1, 2025
[Alex on EARTHSKY.ORG] Sun activity archive for November 2025. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
October 1, 2025
[Alex on EARTHSKY.ORG] Sun activity archive for October 2025. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
September 9, 2025
Visible in Australia, south Pacific, south Atlantic, New Zealand, Antarctica + ONLINE
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.