Science ❯ Astrophysics

Solar Activity

Coronal Mass Ejections Solar Flares Solar Wind Solar Storms Solar Cycles Sunspots Solar Cycle Geomagnetic Storms Magnetic Fields Solar Corona Young Stars Flares Radiation Emission Energy Emissions Solar Granulation Flare Classification X-Class Flares Magnetic Reconnection Solar Dynamics Space Weather Solar Events Impact on Space Missions

New Horizons Wakes From 321‑Day Hibernation and Resumes Science at Edge of the Solar System

The probe’s return lets scientists begin new measurements of the outer heliosphere that could help pin down where the Sun’s influence ends.

New X4.2 Solar Flare Erupts From AR4366 as Earlier CME Nears Earth

Corrected Qufu Coordinates Confirm 709 BCE Total Eclipse, Tighten ΔT Estimates

Peer-Reviewed Study Details How 2024 G5 Superstorm Crushed Earth’s Plasmasphere

Study Finds Solar Flares Superheat Ions 6.5 Times More Than Electrons

Solar Orbiter Study Separates Fast Solar Electrons Into Flare and CME Origins

Parker Solar Probe Confirms Long-Standing Solar Reconnection Theory In Situ

NASA Releases Closest-Ever Images of the Sun From Parker Solar Probe