zondag 4 november 2012

The single greatest vacation picture ever taken | Bad Astronomy

The single greatest vacation picture ever taken | Bad Astronomy:
On Halloween 2012, when people were assembling their costumes and candy, the Mars Curiosity rover was assembling something truly spectacular: a jaw-dropping high-definition self-portrait that has to be seen to be believed:

[Click to enjohnny5enate. And yes, oh my yes, you want to.]
This incredible picture is a mosaic made up of 55 hi-res images taken by the MAHLI, the Mars Hand Lens Imager. That’s a camera designed to be able to take close-up shots of nearby rocks and other feature, but can also focus all the way out to infinity, allowing it to take pictures of distant geographical features as well.
Or, in this case, itself! Now get this: MAHLI is located at the end of the two-meter robotic arm. That was extended and then aimed back at the rover so it could take the pictures (think of every Facebook pic you’ve seen of party revelers holding a camera up and taking a snapshot of themselves). So why don’t you see the arm in these shots? Its because it was edited out! The camera took several pictures which overlapped. So you’d get two shots of, say, the main body of the rover, each with the ...