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Perihelion: What is it and when does it occur?
By Tereza Pultarova last updated
Reference Perihelion is the point at which an orbiting body is closest to the sun. The word comes from Greek and literally means around (peri) the sun (helios).
Coronal mass ejection from colossal New Year's Eve solar flare will strike Earth today
By Robert Lea published
A coronal mass ejection from an X-5 class flare that erupted on New Year's Eve, the strongest flare of solar cycle 25, will likely trigger geomagnetic storms when it hits Earth today (Jan. 2).
This light-bending tech will let scientists see the sun like never before
By Rahul Rao published
Two upcoming solar missions will be armed with "photon sieves." Here's what that means.
Watch giant loop of plasma dance above the sun in stunning video
By Miguel Claro published
A huge loop of plasma dances above the surface of the sun in a stunning timelapse captured by astrophotographer Miguel Claro.
How Solar Orbiter is decoding the sun's mysterious miniflares: 'What we see is just the tip of the iceberg'
By Sharmila Kuthunur published
Scientists look back at Solar Orbiter's first three years of operation.
US government agencies join together to improve space weather forecasting
By Meredith Garofalo published
A new agreement between multiple U.S. government agencies aims to improve space weather forecasts and the government's ability to mitigate the effects of solar storms on critical infrastructure.
Sun unleashes monster X-class solar flare, most powerful since 2017 (video)
By Mike Wall published
The sun unleashed an X2.8 solar flare today (Dec. 14), its most powerful such eruption since September 2017.
Space weather is chaotic and hard to predict. This new model could change that
By Tereza Pultarova published
Scientists are building a 'beyond state-of-the-art' digital model of near-Earth space to improve forecasting of solar storms and their effects on infrastructure.
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