Portal:Astronomy/Anniversaries/June


 * 2 June 1966 – Surveyor 1 lands on the moon, first US spacecraft to do so
 * 3 June 1966 – Gemini 9 (Gemini Titan 9A) launch from Cape Canaveral, Florida
 * 19 June 1976 – The Viking 1 orbiter arrives in Mars orbit
 * 24 June 2004 – First private spaceflight, SpaceShipOne piloted by Mike Melvill
 * 27 June 1996 – Galileo probe, flyby of Ganymede (Jupiter's largest moon)
 * 30 June 2001 – The NASA Explorer mission, MAP (Microwave Anisotropy Probe), is launched to measure the temperature of cosmic background radiation (remnant heat from the Big Bang)