Mars salts must touch ice to make liquid water

14474067273_c5900eba97_kIn chambers that mimic Mars’ conditions, researchers have shown how small amounts of liquid water could form on the planet despite its below-freezing temperatures. Mars is one of the very few places in the solar system where scientists have seen promising signs of it — in gullies down crater rims, in instrument readings, and in Phoenix spacecraft self portraits that appeared to show wet beads on the lander’s leg. No one has directly detected liquid water beyond Earth, though. Experiments at the University of Michigan found that a type of salt present in Martian soil can readily melt ice it touches… [More at link]

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Curiosity update: ‘Rapid traverse’

Sol 676, July 1, 2014, update on Curiosity from U.S. Geological Survey scientist Ken Herkenhoff: “Last weekend, MSL successfully backed out of the sandy ripple, pausing to image her tracks. So more driving toward Mt. Sharp is planned for… [More at link]

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ChemCam probes ‘Winnipesaukee’ rock, dust

Scientists used the Chemistry and Camerapia18396_ccam-mcam_winnipesaukee (ChemCam) instrument on NASA’s Curiosity Mars rover in June 2014 to examine a Martian rock “shell” about one inch (two to three centimeters) across, embedded in fine-grained bedrock and with a dust-filled hollow interior.  This graphic [right] combines an image of the target, called “Winnipesaukee,” with spectrographic results from using… [More at link]

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MAVEN: Exploring solar wind beyond Earth

MAVEN_Solar-Wind_SEPsAs part of its goal to explore Mars’ upper atmosphere and its interaction with the Sun and the solar wind, MAVEN is exploring propagation of the solar wind and solar energetic particles (SEPs) beyond 1 Astronomical Unit [the distance between Earth and Sun] during its cruise to Mars. Solar wind density compressions from stream interactions and interplanetary coronal mass ejections (ICMEs) and SEP events are seen at the orbits of Earth and MAVEN… [More at link]

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THEMIS: Polar layers

Polar ice cap layers (THEMIS_IOTD_20140702)THEMIS Image of the Day, July 2, 2014. This VIS image very clearly shows the layering that is found in both polar caps. This image is of the north polar cap.

More THEMIS Images of the Day by geological topic.

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Curiosity: Sol 676, July 1, 2014

NLB_457506492EDR_F0380202NCAM00279M_A shallow valley leads downward and south toward the dunes, buttes, and Mount Sharp in the distance. The road ahead?

NASA description: This image was taken by Navcam: Left B (NAV_LEFT_B) onboard NASA’s Mars rover Curiosity on Sol 676 (2014-07-01 17:19:46 UTC).

Sol 676 raw images (from all cameras), and Curiosity’s latest location map.

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HiRISE: Polar trough

tumblr_n7zu7hF4AO1rlz4gso1_1280Polar trough. Beautiful Mars series.

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Curiosity: Sol 674, June 29, 2014

Sol_674_three-viewThree-frame composite image from the right-side Navcam, looking back at wheel tracks over the sand ripples along the rover’s course. (Curiosity was driving south in reverse.) At some point, perhaps only a couple of meters back, the rover drove out of the landing ellipse.

NASA description (leftmost image): This image was taken by Navcam: Right B (NAV_RIGHT_B) onboard NASA’s Mars rover Curiosity on Sol 674 (2014-06-29 18:49:49 UTC).

Sol 674 raw images (from all cameras), and Curiosity’s latest location map.

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HiRISE: Russell Crater dune and gully changes

Changestumblr_n7zs5iwl4I1rlz4gso1_1280 among the Russell Crater dunes and gullies. Beautiful Mars series.

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Opportunity: Sol 3709, June 30, 2014

1F457456631EFFCE19P1110L0M1Taking a close look at the Huntingburg outcrop.

 

 

 

 

 

 

1M457456240EFFCE19P2956M2M1

And what the Microscopic Imager saw.

Opportunity raw images, its latest mission status, and a location map. (A shortcut to Sol 3709 front Hazcam images is here and Microscopic Imager shots is here.)

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