Mars Observer
Videos
Mars Observer was an American robotic space probe launched by NASA on September 25, 1992, to study the surface, atmosphere, climate and magnetic field of Mars. The spacecraft was developed and managed
Artist rendering of Mars Observer in orbit around Mars
Mars Observer in the Payload Hazardous Servicing Facility.
Artistic depiction
Mars Observer MOC2 cb
Exploration of Mars
Videos
The planet Mars has been explored remotely by spacecraft. Probes sent from Earth, beginning in the late 20th century, have yielded a large increase in knowledge about the Martian system, focused prima
Mars landing sites (16 December 2020)
Martian sunset, Spirit rover, 2005
Mars 1M spacecraft
The first close-up images taken of Mars in 1965 from Mariner 4 show an area about 330 km across by 1200 km from limb to bottom of frame.