On Oct. 3, the sun released the most powerful solar flare this solar cycle, a colossal X9.05 eruption — and it's heading for Earth.

An M5.6 solar flare erupted from sunspot AR4046 on April 1 — now in Earth's strike zone. Could it trigger a geomagnetic storm and northern lights?

Solar Maximum 2025 is the expected peak of solar activity in Solar Cycle 25, characterized by heightened sunspots, solar ...

The sun has unleashed the most powerful solar flare since 2017, just days after it spat out another monster explosion. Both outbursts have launched solar storms that will likely hit Earth this ...

The sun has released several powerful M- and X-class solar flares over the past few days, resulting in radio blackouts around the world.

Earth's atmosphere is much more sensitive to ripples of radiation from the sun than scientists previously believed, new research by Queen's University Belfast has found.

Earth's atmosphere pulses in sync with the sun's fiery outbursts, indicating it is more sensitive to solar activity than previously thought, according to new research.

The Earth's atmosphere is far more reactive to solar activity than scientists previously believed, with the new research showing it can pulse in near-synchronicity with the sun's powerful flares.

Solar flares can reshape exoplanet atmospheres within days, affecting temperature, winds, and potential habitability.

NASA explains: "Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth’s atmosphere to physically affect humans on the ground.

The sun has once again unleashed a powerful solar flare, continuing its streak of intense activity. On April 1, at 2:46 a.m. EDT (0646 GMT), an M5.6-class flare erupted from sunspot region AR4046 ...