The sun started 2025 with a bang as it fired off a powerful solar flare this morning.

On January 3, the Sun unleashed a powerful X1.2 solar flare, the first one in 2025, causing radio blackouts in parts of South ...

NASA's Interface Region Imaging Spectrograph (IRIS) mission captured an X1.1-class solar flare. See time-lapse footage of the blast that caused "a strong shortwave radio blackout over South America," ...

In the final hours of Christmas Day, the sun fired off four solar flares within less than three hours.

A powerful X1.8 solar flare erupted on January 4, 2025, and was recorded at its peak—7:48 a.m. ET—by NOAA’s Solar Ultraviolet ...

An X-class solar flare erupted on December 29, 2023, sending a burst of solar energy toward Earth that may enhance auroras ...

In 2024, the sun launched over 50 X-class solar flares — the most powerful type of solar flare — at Earth. The video above shows observations from NASA's Solar Dynamics Observatory Atmospheric ...

Scientists divide solar flares into five classes, according to their peak brightness in X-ray wavelengths. In order from smallest / least intense to most intense and troublesome: A-class flares ...

The Northern Lights forecast is looking up in the wake of a series of several large solar X-ray flares, with the nights of ...

In 2024, the sun launched over 50 X-class solar flares — the most powerful type of solar flare — at Earth. Solar flares are categorized by the level of X-rays they produce in a specific wavelength ...

The highest-class solar flare, this year’s first, occurred on Friday, the Moscow-based Institute of Applied Geophysics ...

On Oct. 3, the sun unleashed the most powerful solar flare of the current solar cycle yet. The X-class flare — the most powerful type the sun is capable of producing — reached a magnitude of ...