Astronaut tweets pristine photo of San Francisco from space

Scott Kelly, an astronaut who recently embarked on an unusually lengthy mission in space, tweeted a perfectly clear shot of San Francisco on Monday.

"#SanFrancisco. I almost felt like I was with you as we flew overhead a few minutes ago," he wrote around noon. Since Kelly and a fellow astronaut are attempting NASA's first-ever one-year spaceflight, his tweet included the hashtag #YearInSpace.

#SanFrancisco. I almost felt like I was with you as we flew overhead a few minutes ago. #YearInSpace pic.twitter.com/G00DP8uIJO — Scott Kelly (@StationCDRKelly) April 27, 2015

Kelly, an American from New Jersey, and Russian Mikhail Kornienko are in the International Space Station with Russian Gennady Padalka, who will be with them for six-months, the typical length of NASA's spaceflights.

Kelly tweeted the S.F. photo exactly one month after the trio entered the station. Kelly has already tweeted other stunning images of the Earth including unique perspectives of the Bahamas, Africa and Washington D.C.

Images of the Bay Area and the rest of the world from the unique vantage point are apparently a regular hit among earthlings.

Earlier this year, Astronaut Sam Cristoforetti tweeted an equally-mesmerizing photo of the Bay Area.

Making the most of his 45,000 photographs from his global orbits, Astronaut Chris Hadfield published a book 'You Are Here: Around the World in 92 Minutes' in 2014. See some of images Hadfield tweeted and other provocative images from space in prothe gallery below:

Chris Hadfield Tweeted photos and observations from the International Space Station in late 2012 and early 2013. He Tweeted about this photo: "Humans need straight lines, nature doesn't. Indecisive river and orderly farmers, central Asia." less Chris Hadfield Tweeted photos and observations from the International Space Station in late 2012 and early 2013. He Tweeted about this photo: "Humans need straight lines, nature doesn't. Indecisive river and ... more Photo: Chris Hadfield, NASA / Twitter Photo: Chris Hadfield, NASA / Twitter Image 1 of / 38 Caption Close Astronaut tweets pristine photo of San Francisco from space 1 / 38 Back to Gallery

Happy Earth viewing!