☀️ Solar System Weather
The weather of our solar system begins at the Sun. Here's its live state — full-disk imagery, solar wind, flares and sunspots — alongside real-time space-weather conditions, the aurora outlook, and alerts for asteroids passing near Earth.
🛰️ Space-Weather Storm Scales
NOAA's space-weather storm scales — R radio blackouts, S solar-radiation storms, G geomagnetic storms — graded 0 (none) to 5 (extreme). Higher means more disruption to radio, satellites, power grids and brighter aurora.
Sun and Solar Weather
Live SDO imagery (pick a wavelength filter, or ▶ Play a recent time-lapse) and the key solar indicators — X-ray flux & flares, solar-wind speed/density, the magnetic-field Bz (southward is "storm-friendly"), Kp, sunspot regions, and radio/particle flux.
Aurora outlook
How far from the poles the aurora may be visible tonight, from the planetary Kp index (0–9): the higher the Kp, the lower the latitude the aurora can reach.
Near-Earth object alerts
Asteroids passing close to Earth in the chosen window. Miss distances are in lunar distances (1 LD ≈ 384,400 km); the map plots each object's orbit and live position — hover a dot for details.
Live space-weather alerts
Official NOAA watches, warnings and alerts as they're issued — geomagnetic storms, radio blackouts, radiation storms and more.
Data: NOAA Space Weather Prediction Center (scales, solar wind, flares, Kp, regions, alerts) · NASA Solar Dynamics Observatory (imagery) · NASA/JPL CNEOS (close approaches). Miss distances are given in lunar distances (1 LD ≈ 384,400 km). Asteroid sizes are rough estimates from brightness. Figures are for situational awareness — follow the official links for authoritative data.