Thursday, October 4, 2018

APOD - Opportunity After the Storm

Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

2018 October 4
See Explanation.  Clicking on the picture will download  the highest resolution version available.

Opportunity After the Storm
Image Credit: HiRISE, MRO, LPL (U. Arizona), NASA

Explanation: On Mars dust storms can't actually blow spacecraft over, but they can blot out the Sun. Over three months ago a planet-wide dust storm caused a severe lack of sunlight for the Mars rover Opportunity at its location near the west rim of Endeavor crater. The lack of sunlight sent the solar-powered Opportunity into hibernation and for over 115 sols controllers have not received any communication from the rover. The dust is clearing as the storm subsides though. On September 20th, when this image was taken by the Mars Reconnaissance Orbiter's HiRISE camera, about 25 percent of the sunlight was reaching the surface again. The white box marks a 47-meter-wide (154-foot-wide) area centered on a blip identified as the silent-for-now Opportunity rover.

Tomorrow's picture: the last days of Venus


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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
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