The latest solar flare follows an M-class one, the second-highest on the scale, that occurred days earlier on June 15. It ...

Solar flares take place in the solar corona and chromosphere, ... 2023 — Isotope ratios found in meteorites suggest that a supernova exploded nearby while the Sun and Solar System were still ...

Ancient supernovas may have blasted Earth with powerful radiation, causing dramatic changes in our climate, and could do so again, posing a threat to life.

Solar flares and other solar activity, such as solar storms, are only expected to become more common by 2025 as the Sun reaches the height of its 11-year cycle, known as the solar maximum.

An image of a solar flare captured by NASA in 2013, during a period of high solar activity. (Image credit: NASA Goddard) All life on Earth owes its existence to the sun's radiant heat.

A blazing X2.7-class solar flare erupted from sunspot AR4087 early Tuesday, hurling a scorching wave of plasma and charged particles straight at Earth. NASA/SDO.

But had the supernova occurred closer to us, he said, “it would be a catastrophe. ... especially in scenarios involving intense solar flares from our sun,” Dr. Hayes said.

Solar flares measured around X1 — like the May 13 and 14 events — indicate strong flare intensity. An X10 flare is described as as a severe event, according to NOAA.

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 Earth-facing sunspot has turned into a prolific flare factory, firing off multiple powerful M-class solar flares in less than 24 hours, along with several minor C-class eruptions.

Space The sun may spit out giant solar flares more often than we thought. A survey of more than 56,000 sun-like stars reveals that “superflares” that are linked to bursts of radiation which ...