Free Science Videos and Lectures

This is our home. Earth from 4 billion miles (Voyager 1991).

This is here. This is us. On it every one you ever heard of. Every human being who has ever lived. All our joys and sufferings....

This science video contains:
earth, carl sagan, planet, milky way, voyager, satellite, human, inventor, explorer, universe

Accidents happen. Even at NASA where they have strong testing and integrity procedures.

A rocket carrying a GPS 2R just seconds into the mission explodes.
More than 250 tons of flaming debri and...

This science video contains:
rocket, explosion, satellite, accident, gps, 2r, sattellite, sattelite, booster, crack, fuel, debris