Back to Article List Touchdown! NASA's Phoenix mission successfully lands on the Red Planet and will begin searching for the conditions for life in Mars' past. By Jeremy McGovern and Daniel Pendick | Published: May 25, 2008 | Last updated on May 18, 2023 Key Takeaways:
Robotic Spaceflight, Today in the History of Astronomy Dec. 9, 1978: The Pioneer Venus Multiprobe reaches Venus
Robotic Spaceflight, Today in the History of Astronomy Dec. 8, 1990 & 1992: Galileo flies by Earth (twice)
