Where In The Universe Challenge #105

By Nancy Atkinson - May 19, 2010 at 2:42 PM UTC | Extragalactic
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Ready for another Where In The Universe Challenge? Here's #105! Take a look and see if you can name where in the Universe this image is from. Give yourself extra points if you can name the spacecraft responsible for the image. We provide the image today, but won't reveal the answer until tomorrow. This gives you a chance to mull over the image and provide your answer/guess in the comment section. Please, no links or extensive explanations of what you think this is — give everyone the chance to guess.

UPDATE: The answer has now been posted below.

On July 20, 1976 the Viking 1 Lander separated from the the Viking Orbiter and touched down at Chryse Planitia. This image was taken on the 28th sol or Martian day of the mission. As you may know, the Viking 1 lander has now been surpassed in having the record of longest surface mission on Mars -- the

Opportunity just passed Viking 1's duration

of six years and 116 days operating on the surface of Mars.

The imaging team from Viking were basically learning on the fly on how to calibrate the color for the images, so some early images tended to show "blue" sky, while later reconstructions, trying to account for out-of-band contributions in each filter, tended to show a "red" sky, and often an "orange" surface. Owing to calibration uncertainties, the exact reconstruction of Viking Lander color images remains more or less an art. But what a heady time that must have been in 1976, having two landers on Mars, both working successfully!

Learn more about the Viking lander images and mosaics here.

Check back next week for another WITU challenge!

Nancy Atkinson

Nancy Atkinson

Nancy Atkinson is a space journalist and author with a passion for telling the stories of people involved in space exploration and astronomy. She is currently retired from daily writing, but worked at Universe Today for 20 years as a writer and editor. She also contributed articles to The Planetary Society, Ad Astra (National Space Society), New Scientist and many other online outlets.

Her 2019 book, "Eight Years to the Moon: The History of the Apollo Missions,” shares the untold stories of engineers and scientists who worked behind the scenes to make the Apollo program so successful, despite the daunting odds against it. Her first book “Incredible Stories From Space: A Behind-the-Scenes Look at the Missions Changing Our View of the Cosmos” (2016) tells the stories of 37 scientists and engineers that work on several current NASA robotic missions to explore the solar system and beyond.

Nancy is also a NASA/JPL Solar System Ambassador, and through this program, she has the opportunity to share her passion of space and astronomy with children and adults through presentations and programs. Nancy's personal website is nancyatkinson.com