Damaging heavy rains fell on South Carolina in the southeastern United States at the beginning of October 2015. Much of that water had, by mid-October, flowed into the Atlantic Ocean bringing with it heavy loads of sediment, nutrients, and dissolved organic material. The above VIIRS image shows the runoff as it interacts with ocean currents. via NASA http://ift.tt/1HbbVhG

Expedition 45 Commander Scott Kelly tries on his spacesuit for a fit check inside the U.S. Quest airlock of the International Space Station. Kelly and Flight Engineer Kjell Lindgren will venture outside the station for a pair of spacewalks on Wednesday, Oct. 28 and Friday, Nov. 6. via NASA http://ift.tt/1P2HJfa

Enceladus is a world divided. To the north, the terrain is covered in impact craters, much like other icy moons. via NASA http://ift.tt/1P0XcfT

This image shows the galaxy Messier 94, which lies in the small northern constellation of the Hunting Dogs, about 16 million light-years away. via NASA http://ift.tt/203ss2Y

Artist concept of NASA’s Space Launch System (SLS) 70-metric-ton configuration launching to space. via NASA http://ift.tt/1C6ok6j

For the first time in almost 40 years, a NASA human-rated rocket has completed all steps needed to clear a critical design review (CDR). The agency’s Space Launch System (SLS) is the first vehicle designed to meet the challenges of the journey to Mars and the first exploration class rocket since the Saturn V. via NASA http://ift.tt/1DOoofc

The galaxy cluster MS 0735.6+7421 is home to one of the most powerful eruptions ever observed. X-rays detected by NASA’s Chandra X-Ray Observatory (blue) show the hot gas that comprises much of the mass of this enormous object. This image is part of a collection of new images released from the Chandra archive to celebrate American Archive Month. via NASA http://ift.tt/1RouPHp

NASA is unveiling mosaics of Pluto and its largest moon Charon, representing the global response to its popular “#PlutoTime” social media campaign. A photo of Clyde Tombaugh, the American who discovered Pluto in 1930, is embedded in this mosaic of hundreds of images shared during the campaign. via NASA http://ift.tt/1M4voC3

On Oct. 12-13, 2015, NASA astronaut Scott Kelly shared a series of seventeen photographs taken from the International Space Station during a flyover of Australia. This first photo of the series was shared on Twitter with the caption, “#EarthArt in one pass over the #Australian continent. Picture 1 of 17. #YearInSpace”. via NASA http://ift.tt/1MyWHFc

Just before the 15th anniversary of continuous human presence on the International Space Station on Nov. 2, 2015, U.S. astronaut and commander of the current Expedition 45 crew, Scott Kelly, is breaking spaceflight records. On Friday, Oct. 16, Kelly begins his 383rd day living in space, surpassing U.S. astronaut Mike Fincke’s record. via NASA http://ift.tt/1LxHgR7