Total solar eclipses are due to a fantastic coincidence

Total solar eclipses are the result of a fantastic coincidence: The moon is 400 times smaller than the sun but also 400 times closer to Earth.

The April 8 eclipse will reduce solar power, strain the grid

The April 8 eclipse will impact solar power generation, straining the grid. But grid operators are ready to compensate for the loss of energy production.

Sun activity archive for April 2024

Sun activity archive for April 2024. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.

The April 8 total solar eclipse could scramble bird behavior

Researchers will be studying the reaction of birds - which are in the midst of spring migration - during the total solar eclipse of April 8.

Why is this sun spacecraft image blinking?

Sometimes, we see a sun spacecraft image that seems to blink. This happens when the spacecraft sends back a data stream where some of the data are corrupted.

5000th comet for sun-observing SOHO spacecraft

Citizen scientists using imagery from the SOHO solar observatory have now discovered their 5000th comet. You can help, too! Join the Sungrazer Project.

Fake eclipse glasses polluting marketplace, astronomers warn

With the total solar eclipse approaching, counterfeit and fake eclipse glasses are polluting the marketplace. Here's how to make sure you get the right thing.

Are solar storms dangerous to us on Earth?

Activity on the sun affects Earth's magnetic field. It can cause geomagnetic storms and can create beautiful auroras. Are these solar storms dangerous?

Photos of AR3590, biggest sunspot of Solar Cycle 25 so far

Did you get to see epic AR3590? If not, here's the story of a sunspot that has made history! And check out our YouTube videos as well.

Sun activity archive for March 2024

Sun activity archive for March 2024. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.