For more than 20 years, astronauts have been shooting photographs of Earth from the International Space Station. Before that, they looked down from Mercury, Gemini, Apollo, Skylab, the Space Shuttles, and MIR. They have brought us unique views of our home planet in all of its wonder, beauty, and ferocity. They have also made some interesting and timely science observations along the way.
More than 1,000 of those photos have been published here on NASA Earth Observatory. We would like you to help us choose the best in our archives. In early March, we will launch Tournament Earth: Astronaut Photography, and we want you to be part of the selection committee.
From now through February 19, 2021, search our archives and point out the best photos shot by the astronauts. Post the URLs of your favorite photos in the comments section below.
Please note that there are 30+ pages of images to scroll through — an internet rabbit hole of incredible beauty.
In March 2021, we will include some of your selections in Tournament Earth, a head-to-head contest to vote for the best of the best from our archives. Each week, readers will pick from pairs of images as we narrow down the field from 32 nominees to one champion. The Tournament Earth champion will be announced in early April.
So get browsing and get choosing. Then post your favorite URLs in the comments section by February 19.
If you want to learn more about how and why astronauts shoot photos of our planet — and the special training involved — check out our video series “Picturing Earth.” Astronaut Photography in Focus
Watch out, master gardeners: There’s competition up above.
Scientists have made marked developments in growing vegetables in space this spring. Researchers based at Kennedy Space Center have been working with a team from the University of Arizona to create a prototype lunar/Mars greenhouse. The cylindrical, inflatable chamber measures 18 feet long and 8 feet in diameter. It recycles waste and water from astronauts, and uses carbon dioxide they exhale.
Growing edible plants in space will allow humans to venture farther beyond our home planet, said Ray Wheeler, lead scientist for Kennedy Advanced Life Support Research. “The greenhouses provide a more autonomous approach to long-term exploration on the Moon, Mars and beyond,” he said.
Last month, perhaps the most-watched cabbage in the world—technically speaking, in Earth orbit—sprouted. Two tiny shoots of the Tokyo Bekana Chinese cabbage poked out of their specially-designed plant pillow. The pillow acts like a miniature plant bed, providing nutrients without the mess of dirt careening through space.
When astronomer and Slate blogger Phil Plait fired up the image processing software on his computer down on Earth, he enhanced the brightness on Nyberg’s photo so that Jupiter and Mercury show up quite nicely. (See the enhanced image below.) Read more about the remarkable photograph on the Bad Astronomy blog.