View all launches available - including launches from the past and utilize powerful search filters.
Small satellite similar to Explorer 1. It failed to reach orbit due to a fourth stage failure.
Small satellite used to test the Vanguard three-stage launch vehicle.
First successfully launched American satellite. It was the first spacecraft to detect the Van Allen Radiation Belt.
Second artificial satellite and first to carry an animal into orbit.
First artificial satellite consisting of a 58 cm pressurized aluminium shell containing two 1 W transmitters for a total mass of 83.6 kg.