The single greatest vacation picture ever taken

Bad Astronomy
The entire universe in blog form
Nov. 4 2012 6:00 AM

The single greatest vacation picture ever taken

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:

Phil Plait Phil Plait

Phil Plait writes Slate’s Bad Astronomy blog and is an astronomer, public speaker, science evangelizer, and author of Death From the Skies!  

Advertisement

[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? It's 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 arm blocking a different part of the rover's body. By combining the parts of each picture that don't show the arm, you can edit it out of the final product. [UPDATE: What I said is technically possible, but not in fact what happened! Emily Lakdawalla has - haha - the scoop on this.]

In the end, you're left with a pristine (if somewhat distorted) view of the rover as if you were standing there. And there's so much more than just the rover! The rocks and sand covering the ground, the wheel tread prints in the surface, the small plain the rover sits on. And you can see the layered hills in the distance; those rise up to become the central peak of Gale Crater, Curiosity's home... and also the rover's eventual destination. Remember, it's a rover. It roves.

Pictures like this also let engineers assess the rover's status. They can look over the different parts and make sure everything's OK, and also use it as a baseline in case something goes wrong later. It's far more than just a pretty picture.

But oh my, it's such a pretty picture!

You can get more info at Universe Today, and Emily Lakdawalla at The Planetary Society Blog points out some fun stuff to look for in the shot, too.

And, I suppose, the title of this post is somewhat misleading. It may look like Curiosity is sitting on a sandy beach somewhere, taking its own "Wish you were here!" picture. But in reality, it's no vacation. Curiosity is there to work. And it has just two Earth years to unravel a few billion years of Martian history.

Image credit: NASA/JPL-Caltech/Malin Space Science Systems



Related Posts:

TODAY IN SLATE

Technocracy

Forget Oculus Rift

This $25 cardboard box turns your phone into an incredibly fun virtual reality experience.

The Congressional Republican Digging Through Scientists’ Grant Proposals

The 2014 Kansas City Royals Show the Value of Building a Mediocre Baseball Team

The GOP Won’t Win Any Black Votes With Its New “Willie Horton” Ad

Whole Foods Is Desperate for Customers to Feel Warm and Fuzzy Again

The XX Factor

I’m 25. I Have $250.03.

My doctors want me to freeze my eggs.

The XX Factor
Oct. 20 2014 6:17 PM I’m 25. I Have $250.03. My doctors want me to freeze my eggs.
Politics

Smash and Grab

Will competitive Senate contests in Kansas and South Dakota lead to more late-breaking races in future elections?

I Am 25. I Don’t Work at Facebook. My Doctors Want Me to Freeze My Eggs.

These Companies in Japan Are More Than 1,000 Years Old

  News & Politics
The World
Oct. 21 2014 11:40 AM The U.S. Has Spent $7 Billion Fighting the War on Drugs in Afghanistan. It Hasn’t Worked. 
  Business
Moneybox
Oct. 21 2014 1:12 PM The Global Millionaires Club Is Booming and Losing Its Exclusivity
  Life
The Eye
Oct. 21 2014 1:47 PM How Designers Use Creative Briefs to Better Their Work
  Double X
The XX Factor
Oct. 21 2014 1:12 PM George Tiller’s Murderer Threatens Another Abortion Provider, Claims Right of Free Speech
  Slate Plus
Behind the Scenes
Oct. 21 2014 1:02 PM Where Are Slate Plus Members From? This Weird Cartogram Explains. A weird-looking cartogram of Slate Plus memberships by state.
  Arts
Brow Beat
Oct. 21 2014 1:47 PM The Best Way to Fry an Egg
  Technology
Technology
Oct. 21 2014 10:43 AM Social Networking Didn’t Start at Harvard It really began at a girls’ reform school.
  Health & Science
Climate Desk
Oct. 21 2014 11:53 AM Taking Research for Granted Texas Republican Lamar Smith continues his crusade against independence in science.
  Sports
Sports Nut
Oct. 20 2014 5:09 PM Keepaway, on Three. Ready—Break! On his record-breaking touchdown pass, Peyton Manning couldn’t even leave the celebration to chance.