Science ❯ Astrophysics

Solar Activity

Coronal Mass Ejections Solar Flares Solar Cycles Sunspots Solar Wind Magnetic Fields Solar Storms Solar Cycle Geomagnetic Storms Flares

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

Forecasters expect a glancing CME to bring minor geomagnetic storm conditions.

Fast Solar Wind From Small Coronal Hole Reaches Earth, Weak Storms Possible

Ancient Chinese Eclipse Reinterpreted After Qufu's True Location Identified, Refining Earth Rotation and Solar Activity Records

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

Sun Unleashes Three M-Class Flares as Activity Surges

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

Kamchatka Logs Nine Aftershocks Up to M5.8 as Pacific Rim Sees Fresh Quakes

Chandrayaan-2 Records First Direct Solar Storm Effects on the Moon’s Exosphere

Earth Enters Fast Solar-Wind Stream as Moderate Geomagnetic Storm Begins

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

ESA’s Solar Orbiter Captures First Images of Sun’s South Pole

New Solar Telescope Instrument Captures Unprecedented Images of Sunspots

Northern Lights Could Illuminate Northern U.S. Skies Tonight

Kepler's 1607 Sunspot Drawings Illuminate Solar Cycle Mysteries