Accurate observer reports on fireballs and meteors

Join the search for extraterrestrial civilizations!

To record phenological events along the Appalachian Trail

Promote citizen science, develop baseline data, analyze change

Classify gamma-ray bursts

Collect observations on water, algae, and litter around Lake Tahoe.

Characterize exotic clouds high in the Martian atmosphere.

To improve temporal and spatial snow depth data coverage.

Collect hydrological data using a smartphone app

Explore earth science and astronomy in our new at-your-school program!