Mars 2 var en sovjetiskrymdsond och landare som sköts upp den 19 maj1971, med en Proton K/D raket, för att utforska planetenMars. Rymdsonden gick in i omloppsbana runt mars den 27 november 1971. Samma dag släpptes landaren mot ytan, landningen misslyckades och landaren kraschade. Med ombord på landaren fanns en liten "rover" som skulle rullat runt på ytan, kopplad till landaren via en 15 meter lång kabel.
Marskorsande asteroider•Mars trojaner•Dariankalendern•Tid på Mars•Mars Society•Flashline Mars Arctic Research Station•Haughton–Mars Project•Mars to Stay•Mars flagga•Mars i fiktion•Marshavshypotesen•Caves of Mars Project
Mars Hubble.jpg NASA's Hubble Space Telescope took the picture of Mars on June 26, 2001, when Mars was approximately 68 million kilometers (43 million miles) from Earth — the closest Mars has ever been to Earth since 1988. Hubble can see details as small as 16 kilometers (10 miles) across. The colors have been carefully balanced to give a realistic view of Mars' hues as they might appear through a telescope.
Especially striking is the large amount of seasonal dust storm activity seen in this image. One large storm system is churning high above the northern polar cap (top of image), and a smaller dust storm cloud can be seen nearby. Another large dust storm is spilling out of the giant Hellas impact basin in the Southern Hemisphere (lower right).