See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. There is a chance of powerful X-class solar flares that are capable of ...

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Mars An anomaly in Mars' mantle could trigger volcanoes to erupt — and may be causing the whole planet to spin faster Astronomy Astronomers map one of the largest structures in the universe, hidden ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A new sunspot forming on the surface of the sun might be about to fling ...

The sun has fired off not one but two colossal X-class solar flares in less than 12 hours, causing radio blackouts across the sunlit portion of Earth at the time of eruption and marking a dramatic ...

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The Sun has produced three M-class solar flares within 24 hours, following a pair of powerful X-class flares on April 23–24. The eruptions launched multiple coronal mass ejections that could brush ...

Update, Nov. 5, 2025: NOAA has upgraded its forecast to a G3 (strong) geomagnetic storm, meaning up to 21 U.S. states may see aurora overnight on Nov. 6-7, 2025. Two X-class solar flares — the ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A spot on the sun 10 times larger than Earth has been seen ...

The sun has somewhat surprised forecasters today with a dramatic X-class solar flare from a newly emerging sunspot region. The intense solar flare originated from sunspot region AR4046 and was ...