Nights on Earth lists astronomical events including meteor showers and planetary conjunctions.
Free
24 alternativesSpaceWeather
SpaceWeather.com reports solar wind and flare data, with news about meteor showers, auroras, and near-Earth asteroids.
About SpaceWeather
SpaceWeather reports current space weather measurements and news about solar flares, meteor showers, auroras, and near-Earth asteroids. It shows readings such as solar wind speed and density, X-ray flare levels, sunspot number, K-index, interplanetary magnetic field, coronal holes, and 10.7 cm radio flux.
It also publishes NOAA flare and geomagnetic storm probability forecasts and current auroral oval maps, with data credited to sources including NOAA, NASA/SDO, ACE and DSCOVR.
Key features
- Current solar wind speed and density readings
- X-ray solar flare activity with 6-hour and 24-hour maxima
- Daily sunspot number and sunspot images
- Current auroral oval maps for multiple regions
- Planetary K-index and interplanetary magnetic field data
- NOAA flare and geomagnetic storm probability forecasts
Best for: People who want to follow solar activity, auroras, meteor showers, and near-Earth asteroids.
Good for
- Lists solar wind, flare, sunspot, K-index, and magnetic field data in one place
- Publishes NOAA forecast probabilities for flares and geomagnetic activity
- Includes news updates and a realtime aurora photo gallery
SpaceWeather at a glance
- Website
- spaceweather.com
- Category
- Education & Learning › Space & Astronomy
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
SpaceWeather alternatives
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SpaceWeather FAQ
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The site lists a Spaceweather.com Newsletter as free.
How are CME impact alerts offered?
The site lists CME impact alerts via SMS text.
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