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The Best Space Photos Ever: Astronauts & Scientists Weigh in

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supernova 1994d hubble photo
Australian National University astrophysicist Brian Schmidt chose this Hubble photo of Supernova SN 1994D as his favorite space image, which he called "the poster child of a type Ia supernovae." The supernova is the bright spot on the lower left, shown near the galaxy galaxy NGC 4526. Schmidt won the 2011 Nobel Physics prize for his studies of distant supernovas that helped reveal the existence of dark energy. (Image credit: NASA/ESA, The Hubble Key Project Team and The High-Z Supernova Search Team)

The wonder of the cosmos.The beauty of the heavens. Such phrases come easily to mind when contemplating space, which is just such a photogenic place.

Looking up at the night sky has inspired humanity for eons, and the first photographs taken of space changed our relationship with the sky forever. Then, the first photos taken from space, both of distant galaxies and of our own planet, revolutionized our understanding of our place in the cosmos again.

Many seminal images stand out in the history of astrophotography, with some pictures universally adored and others special to individuals for personal reasons.

We asked scientists, photographers, authors and historians for their favorite space photographs and found a diversity of choices, as well as some popular recurring favorites. [Gallery: Experts' Favorite Space Photos]

Seeing Earth from lunar orbit

The most-nominated photo we received was without a doubt "Earthrise," the first picture taken of planet Earth bypeople orbiting the moon. This shot was captured by Apollo 8 astronaut Bill Anders on December 24, 1968, as his spacecraft became the first to fly around the moon.

"Earthrise," the first picture taken of planet Earth by people orbiting the moon. This shot was captured by Apollo 8 astronaut Bill Anders on December 24, 1968, as his spacecraft became the first to fly around the moon. (Image credit: NASA)

"It was iconic for the environmental movement," said astronomer Jill Tarter, co-founder of the SETI (Search for Extraterrestrial Intelligence) Institute in Mountain View, Calif. "It allowed us to see ourselves as Earthlings living on a single, fragile, beautiful planet. This perspective is even more important today. Many of the challenges we face require long-term thinking and global cooperation; they do not respect national boundaries."

Tarter called her selection of this picture as her favorite a "no-brainer," and she wasn't alone. Former astronaut Pamela Melroy, one of only two women to command the space shuttle, selected "Earthrise," too.

"In space, new vantage points always result in striking images — we saw that all the time as the space station was assembled, and cameras and windows opened up new views of the space shuttle and International Space Station in ways that always surprised us," Melroy told SPACE.com. "But the first view on Apollo 8 of Earthrise had to have been the biggest surprise ever —a new view of spaceship Earth!"

Deep fields and lunar vistas

More votes for "Earthrise" came from John Mather, senior project scientist for NASA's James Webb Space Telescope, and writer Dava Sobel, author of space- and science-themed books "The Planets," "Galileo's Daughter" and "Longitude."

Sobel called out the picture of Earth, as well as the Hubble Space Telescope's famous "Hubble Deep Field" photo, which offered the deepest view yet of the universe when it was taken in 1995, by combining light gathered over many hours to reveal thousands of distant galaxies.

"Both [photos] set the mind ajar, spring surprises on the senses," Sobel said.

This seminal 1995 image was taken by the Hubble Space Telescope. Called the Hubble Deep Field, it collected light over many hours to reveal the deepest view of the universe yet, which included thousands of distant galaxies. (Image credit: R. Williams (STScI), the Hubble Deep Field Team and NASA)

These two pictures were called "familiar classics" by Nobel Prize-winning physicist Frank Wilczek of MIT.

"To break the tie with something fresher, I'll mention a recent one, that's actually far from beautiful, but that I find meaningful and deeply moving," Wilczek said. The photo he picked is called "Earth From Mars," which was taken by NASA's Mars Exploration Rover Spirit on March 8, 2004. It was the first image of Earth seen from the surface of a planet beyond the moon.

This photo, called "Earth From Mars," was taken by NASA's Mars Exploration Rover Spirit on March 8, 2004. It was the first image of Earth seen from the surface of a planet beyond the moon. (Image credit: NASA/JPL/Cornell/Texas A&M)

Astronomer Greg Laughlin of the University of California, Santa Cruz nominated an image of the crescent planet Neptune and its crescent moon Triton taken by NASA's Voyager 2 spacecraft in 1989.

"There's no false color, no artifice, no agenda," Laughlin said."This photograph is calming, mysterious and aesthetically perfect."

The crescent planet Neptune and its crescent moon Triton, as seen by NASA's Voyager 2 spacecraft in 1989. (Image credit: Voyager 2, NASA)

In some cases, the meaning behind a photo eclipses its aesthetic qualities. That may be the case for a photo of helmets and spacesuits covered in lunar dust after the last manned moonwalk, from the 1972 Apollo 17 mission.

"It symbolizes NASA at its best, and our exploration aspirations for the future," said Southwest Research Institute planetary scientist Alan Stern, who chose the photo.

This photo shows helmets and spacesuits covered in lunar dust after the last manned moonwalk, from the 1972 Apollo 17 mission. (Image credit: NASA)

Solar scientist Phillip Chamberlin's pick can be appreciated by anyone for its pure beauty, but this photo of the sun has special meaning to the researcher, who is deputy project scientist for NASA's Solar Dynamics Observatory (SDO) at theGoddard Space Flight Center in Greenbelt, Md.

"When we first started getting data, after years of work on building the SDO instruments and spacecraft, launching SDO, and early ops, we took our first images and this is what we saw with AIA, [SDO's Atmospheric Imaging Assembly instrument]," Chamberlin said. "Absolutely amazing."

This photo was among the first images taken by the Atmospheric Imaging Assembly on NASA's Solar Dynamics Observatory satellite. (Image credit: NASA/SDO)

For more photo picks, see our complete gallery of experts' favorite space images.

This story was provided by SPACE.com, a sister site to Live Science. Follow Clara Moskowitz on Twitter @ClaraMoskowitz or SPACE.com @Spacedotcom. We're also on Facebook & Google+.

Clara Moskowitz
Clara Moskowitz
Clara has a bachelor's degree in astronomy and physics from Wesleyan University, and a graduate certificate in science writing from the University of California, Santa Cruz. She has written for both Space.com and Live Science.