ISS047e010211 (03/17/2016) --- NASA astronaut Tim Kopra sent this interesting image out via Twitter with the comment " Lake in #Brazil - looks like something from #MiddleEarth. @Space_Station #TheShire #Explore".

CAPE CANAVERAL, Fla. -- Workers prepare to load the payload shipping container that holds the Space Test Program-Houston 4 STP H-4 experiments on a transport that will also carry containers with the unpressurized Orbital Replacement Units ORU for the International Space Station's Main Bus Switching Unit MBSU and Utility Transfer Assembly UTA. The payloads were processed at Kennedy and will be trucked to Chicago. From Chicago, they will be moved by air freight to Narita, Japan, where a complicated combination of ground and ocean ferry transfers will be used to deliver them to the Tanegashima Space Center. At Tanegashima the payloads will be turned over to the Japan Aerospace Exploration Agency JAXA in preparation for launch on the H-II Transfer Vehicle 4 HTV-4 mission this summer. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. -- Inside the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, technicians begin to lower the cover of a shipping container that will enclose the orbital replacement unit for the space station's utility transfer assembly. The unit is one of the payloads processed at Kennedy that will be flown to Japan for the HTV-4 launch to the station, which is currently scheduled for this summer. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. -- Inside the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, technicians prepare to lower the cover of a shipping container that will enclose the orbital replacement unit for the space station's utility transfer assembly. The unit is one of the payloads processed at Kennedy that will be flown to Japan for the HTV-4 launch to the station, which is currently scheduled for this summer. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. -- Workers prepare to load the payload shipping containers that hold the unpressurized Orbital Replacement Units ORU for the International Space Station's Main Bus Switching Unit MBSU and Utility Transfer Assembly UTA, as well as the Space Test Program-Houston 4 STP H-4 experiments, on a transport. The payloads were processed at Kennedy and will be trucked to Chicago. From Chicago, they will be moved by air freight to Narita, Japan, where a complicated combination of ground and ocean ferry transfers will be used to deliver them to the Tanegashima Space Center. At Tanegashima the payloads will be turned over to the Japan Aerospace Exploration Agency JAXA in preparation for launch on the H-II Transfer Vehicle 4 HTV-4 mission this summer. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. -- Inside the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, technicians lower the cover of a shipping container that will enclose the orbital replacement unit for the space station's main bus switching unit. The unit is one of the payloads processed at Kennedy that will be flown to Japan for the HTV-4 launch to the station, which is currently scheduled for this summer. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. -- Payload shipping containers that hold the unpressurized Orbital Replacement Units ORU for the International Space Station's Main Bus Switching Unit MBSU and Utility Transfer Assembly UTA, as well as the Space Test Program-Houston 4 STP H-4 experiments, are loaded on a transport. The payloads were processed at Kennedy and will be trucked to Chicago. From Chicago, they will be moved by air freight to Narita, Japan, where a complicated combination of ground and ocean ferry transfers will be used to deliver them to the Tanegashima Space Center. At Tanegashima the payloads will be turned over to the Japan Aerospace Exploration Agency JAXA in preparation for launch on the H-II Transfer Vehicle 4 HTV-4 mission this summer. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. -- Inside the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, technicians finish lowering the cover of a shipping container that will enclose the orbital replacement unit for the space station's utility transfer assembly. The unit is one of the payloads processed at Kennedy that will be flown to Japan for the HTV-4 launch to the station, which is currently scheduled for this summer. Photo credit: NASA_Jim Grossmann

CAPE CANAVERAL, Fla. -- Inside the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, technicians lower the cover of a shipping container that will enclose the orbital replacement unit for the space station's main bus switching unit. The unit is one of the payloads processed at Kennedy that will be flown to Japan for the HTV-4 launch to the station, which is currently scheduled for this summer. Photo credit: NASA_Jim Grossmann

ISS043E182270 (05/08/2015) --- NASA astronaut Scott Kelly tweeted this image of Subtropical Storm Anna as it moved toward the US east coast on May 8th, 2015. Scott added this comment to his tweet: "Subtropical Storm #Ana churns off the East coast of USA. #Wx from @Space_Station. #YearInSpace."

ISS047e000320 (02/17/2016) --- Aurora flashing over the Earth as the International Space Station orbits around the planet. NASA astronaut Tim Kopra sent this mesmerizing image out with the comment " "Stunning #aurora tonight- felt like we were enveloped in green light when we passed through this band @Space_Station". "

ISS047e001308 (03/02/2016) --- Europe meets Africa in this Earth Observation image captured by NASA astronaut Tim Peake. He tweeted this message out with the photo " Strait of Gibraltar - 9 miles separating #Europe and #Africa . @Space_Station #Explore ".

ISS043E120466 (04/13/2015) --- NASA astronaut Scott Kelly shared this image on Apr. 13, 2015 showing parts of Houston, Johnson Space Center and Ellington Airfield where NASA astronaut pilots get their flight time in T-38 jets. He tweeted it out to his follower's with the comment: "I can see my house (and @NASA_Johnson) from @Space_Station! #Houston #YearInSpace ".

ISS046e043637 (02/20/2016) --- NASA astronaut Scott Kelly tweeted out this image to his followers Feb 20, 2016 with the tag: "This #Saturday morning checked out the @Microsoft #HoloLens aboard @Space_Station! Wow! #YearInSpace ". The device is part of NASA’s project Sidekick which is exploring the use of augmented reality to reduce crew training requirements and increase the efficiency at which astronauts can work in space.

iss046e044605 (02/20/2016) --- Night falls for the Expedition 46 crew of the International Space Station. NASA astronaut Scott Kelly captured this image and tweeted it out to his followers with this remark: " Day 330 (in space). Tried to only count up. 10 days left tmrw I started #countdown! #GoodNight from @space_station! #YearInSpace

ISS046e004535 (01/03/2016) --- Earth observation taken during a day pass by NASA astronaut Scott Kelly aboard the International Space Station. A Russian Soyuz spacecraft dominates the center of the view as it sits docked to the station. Kelly tweeted this image with the message: "Day 282. Soyuz silhouette and #sunset colors of our magnificent #Earth. #GoodNight from @space_station! #YearInSpace".

ISS043E089469 (04/06/2015) --- NASA astronaut Scott Kelly, one of two One-Year crew members on the International Space Station, has his morning coffee and TV news from the Houston area on Apr. 6, 2015. His tweeted comment with this image: " Morning @space_station with my coffee and news from Earth with @KHOU News Houston and @KHOU Lily Jang".

ISS043E194316 (05/15/2015) ---NASA astronaut Scott Kelly aboard the International Space Station tweeted this image out on May, 15, 2015 with this comment concerning his twin brother former astronaut Mark Kelly's appearance on a Television show: "Watching my bro @ShuttleCDRKelly on #CelebrityJeopardy onboard @Space_Station this morning. Great job representing"!

View taken by the Expedition 49 crew of track of first of four pairs of Planet Lab DoveSats over the Earth. This deployment titled “Flock 2” is a fleet of nanosatellites designed, built and operated by Planet Labs Inc., and will enable imagery of the changing planet to be taken on a frequent basis, with humanitarian and environmental applications ranging from monitoring deforestation and the ice caps to disaster relief and improving agriculture yields in developing nations. Image used as part of Twitter message - We launched two satellites from @Space_Station today – like skydivers soaring towards the earth." #AstroKate.

ISS043E194350 (05/15/2015) --- NASA astronaut Scott Kelly on the International Space Station tweeted this image out of an Earth observation image as part of his Space Geo trivia contest. Scott tweeted this comment and clue: "#SpaceGeo Four international borders in one photo from the International @Space_Station. Name them"! Two winners! Congrats to @TeacherWithTuba & @PC101!. The correct answer is :#SpaceGeo A: #Denmark #Norway #Sweden #Germany & #Poland. The winners will receive an autographed copy of this image when Scott returns to Earth in March 2016. Learn more about #SpaceGeo and play along every Wednesday for your chance to win: <a href="http://www.nasa.gov/feature/where-over-the-world-is-astronaut-scott-kelly/" rel="nofollow">www.nasa.gov/feature/where-over-the-world-is-astronaut-sc...</a>