First Pressure Readings on Mars
This graph shows readings for atmospheric pressure at the landing site of NASA's Curiosity rover. The data were obtained by Curiosity's Rover Environmental Monitoring Station from Aug. 15 to Aug. 18, 2012. The fluctuations between about 690 Pascals (6.9 millibars) and 780 Pascals (7.8 millibars) shows that the atmosphere is similar to predicated models.
Image credit: NASA/JPL-Caltech/CAB(CSIC-INTA)