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Every night, a network of NASA all-sky cameras scans the skies above the United States for meteoritic fireballs. Automated software maintained by NASA's Meteoroid Environment Office calculates their orbits, velocity, penetration depth in Earth's atmosphere and many other characteristics.
Daily monitoring of solar flares, geomagnetic storms, Earth's aurora, and all forms of space weather.
Automated software maintained by NASA's Meteoroid Environment Office calculates their orbits, velocity, penetration depth in Earth's atmosphere and many other characteristics. Daily results are presented here on Spaceweather.com. On Sep 28, 2024, the network reported 11 fireballs.
Daily monitoring of solar flares, geomagnetic storms, Earth's aurora, and all forms of space weather.
Scientists classify solar flares according to their x-ray brightness in the wavelength range 1 to 8 Angstroms. There are 3 categories: X-class flares are big; they are major events that can trigger planet-wide radio blackouts and long-lasting radiation storms.
It's the next best thing to a giant government radar! Click on the button to listen to a live audio feed: A Note of Thanks! The following listeners have made generous donations to Space Weather Radio: Kenneth Walker of Lancaster, California.
Radio meteor listening stations usually record 2 to 10 times more meteors than visual spotters in dark sky locations. The radio advantage is even greater during the day. Clouds, bright moonlight, and even sunshine are no impediment to radio meteor listening.
A spotless day is a day without sunspots, a day when the face of the sun is utterly blank. Spotless days never occur during Solar Max when the sun is active, but they are common during solar minimum, the opposite phase of the 11-year sunspot cycle when the sun is very quiet.
As this index increases, the aurora's southern edge moves southward. In this article we briefly explain some of the ideas behind the association of the aurora with geomagnetic activity and a bit about how the ‘K-index’ or ‘K-factor’ works.
In Huntsville, AL, where our online receiver is located, dawn happens at about 1200 UT and dusk is ten hours later at 2200 UT. Please read the Science@NASA story "Earth Songs" to find out what these strange sounds represent. Visit SpaceWeather.com and find out what's up in space today!