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.

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.

A research team led by Dr. Shen Jinhua from the Xinjiang Astronomical Observatory (XAO) of the Chinese Academy of Sciences has investigated rapid spatiotemporal vertical electric currents (VECs) ...

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.

In May 2024, the largest solar flare since 2017 was detected, ranking at an X-8.7 magnitude. Then in 2025, a flare May 13 was classified as an X-1.2 , and another the next day was listed as an X-2.7 .

A new study suggests that explosive events in space have the potential to temporarily switch off the natural shield that protects us from harmful solar radiation. By Katrina Miller On Oct. 9, 2022 ...