Has the sun already reached solar maximum? New data suggests Solar Cycle 25 may have peaked earlier than expected. Find out ...

Solar flares are classified based on their strength and fall into five designated categories: A, B, C, M and X. An X-class solar flare is the most intense type of solar flare and can produce as ...

On March 29, 2025, the Moon will glide across the Sun's face for a couple of hours, giving much of North and Central America ...

While records from ancient Greece and China show that people have been observing sunspots since ancient times, counting them only became possible with the invention of the telescope in the early ...

Some U.S. states could be treated with a northern lights display due a minor geomagnetic storm on the sun, according to space ...

The rare pictures show the ISS while NASA astronauts were out on a spacewalk. The station crossed three sets of sunspots, including one big enough to swallow two Earths. An astrophotographer has ...

NASA proclaimed 2024 to be “Heliophysics Big Year,” and with good reason. Heliophysics is the study of the sun, and 2024 gave ...

Observing an eclipse of the sun is always fascinating, but on March 29, 2025 — when a partial solar eclipse is visible in the Northern Hemisphere — there will be an extra reason to do so.As well as up ...

However, the frequency of sunspots, solar flares and coronal mass ejections is not constant. Instead, it rises and falls throughout an 11-year solar cycle. At the bottom of this solar cycle ...

As well as up to 94% of the sun being blocked by the moon, sky-watchers will see sunspots on the solar surface ... the sun looks like right now from NASA's Solar Dynamic Observatory.