12.13.2016 Now and Long Ago at Gale Crater, Mars
12.13.2016 Where's Boron? Mars Rover Detects It
10.03.2016 Curiosity Self-Portrait at 'Murray Buttes'
10.03.2016 Butte 'M9a' in 'Murray Buttes' on Mars
09.19.2016 Ribbon Cutting
09.09.2016 Farewell to Murray Buttes (Image 5)
09.09.2016 Farewell to Murray Buttes (Image 4)
09.09.2016 Farewell to Murray Buttes (Image 3)
09.09.2016 Farewell to Murray Buttes (Image 2)
09.09.2016 Farewell to Murray Buttes (Image 1)
08.26.2016 Out-of-this-World Records
03.30.2016 Erisa Hines
03.30.2016 Buzz Aldrin
02.12.2016 Women in Science
02.09.2016 Adam Steltzner, a JPL engineer
01.27.2016 Night Close-up of Martian Sand Grains
01.27.2016 Curiosity Self-Portrait at Martian Sand Dune
12.17.2015 Alteration Effects at Gale and Gusev Craters
12.17.2015 Full-Circle View Near 'Marias Pass' on Mars
12.11.2015 Surface Close-up of a Martian Sand Dune
12.11.2015 Martian Sand Disturbed by Rover Wheel
11.24.2015 Carbon Exchange and Loss Processes on Mars
11.17.2015 Chemical Laptop 1
Steady Temperatures at Mars' Gale CraterThis pair of graphs shows about one-fourth of a Martian year's record of temperatures (in degrees Celsius) measured by the Rover Environmental Monitoring Station (REMS) on NASA's Curiosity rover. The data are graphed by sol number (Martian day, starting with Curiosity's landing day as Sol 0), for a period from mid-August 2012 to late February 2013, corresponding to late winter through the end of spring in Mars' southern hemisphere.
The upper graph plots the daily minimum and maximum of air temperature around the rover. The pattern is quite steady, with daily highs at about 32 degrees Fahrenheit (0 degrees Celsius) and lows at about minus 94 Fahrenheit (minus 70 Celsius).
The lower graph plots daily minimum and maximum of ground temperature measured by REMS. A change in the pattern just after Sol 120 corresponds to Curiosity driving onto a type of ground with higher thermal inertia -- thus cooling off more slowly in the evening and warming up more slowly in the morning. The higher thermal inertia of this area was predicted from orbital infrared measurements and is likely due to greater abundance of exposed bedrock relative to soil or sand.
Image Credit: NASA/JPL-Caltech/CAB(CSIC-INTA)/FMI/Ashima Research