April 26th in Astronomy and Space Science
1962 | USSR launches Cosmos 4, the first Soviet weather satellite. | |
1962 | US launches the British Ariel 4 satellite from Cape Canaveral. The first international satellite, it measures X-rays and cosmic rays from Earth orbit. It is also the first non-US, non-USSR spacecraft to enter space. | |
1967 | Italian San Marco 2 satellite launched from a platform off coast of Kenya marking the first launch from a sea-based platform. |