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Two massive storms in ’s turbulent southern hemisphere appear in this new image captured during my latest flyby of the planet

After a few tries, I’ve successfully stowed my grapple, by grabbing a small restraint mounted on my arm. Sort of a Martian twist on the classic cup-and-ball game.

RT @NASASolarSystem
All in a day: using data from NASA's Cassini spacecraft, researchers believe they have finally solved a longstanding mystery, the length of a day on Saturn. 

RT @Dr_ThomasZ
With the required approval from Congress, NASA has been in discussions with China to explore the possibility of observing a signature of the landing plume of their lunar lander, Chang’e 4, using our @NASAMoon spacecraft's instrument. More on collaboration: 

By mapping impact craters on our Moon with @LRO_NASA data, scientists have made a surprising discovery about the history of asteroid impacts on Earth. 

How old are ’s rings?

Data from @CassiniSaturn suggest they’re younger than the planet, forming 10–100 million years ago when dinosaurs lived on Earth: 

Mapping an asteroid requires views from all directions. During Preliminary Survey, I used MapCam to snap this image of Bennu from a distance of about 8 miles (13 km) as I flew toward the asteroid during a pass over its equator. 

New ! Around and around: This gif shows the propeller-like rotation of as seen by the Long Range Reconnaissance Imager (LORRI) aboard @NASANewHorizons as the spacecraft sped toward its close encounter. @nasa

The liquid hydrogen tank will comprise two-thirds of the core stage and hold 537,000 gallons of liquid hydrogen. A test article tank was loaded into a stand @NASA_Marshall where it will undergo rigorous testing. MORE: 

Administrator @JimBridenstine & Russian Space Agency @ROSCOSMOS General Director Dmitry @Rogozin had a teleconference today where they discussed further cooperation in space, as well as the prospect of a meeting.

RT @ISS_Research
ICYMI: A tool aboard the @Space_Station is helping scientists better understand how black holes evolve, and how they affect the galaxies in which they reside. Findings were released as the cover story on @nature this week.

RT @spacex
Good splashdown of Dragon confirmed, completing SpaceX’s fourth resupply mission to and from the @Space_Station with a flight-proven spacecraft.

RT @Space_Station
The @spacex cargo craft was released from the International Space Station's Canadarm2 robotic arm today at 6:33 p.m. EST. 

RT @Space_Station
Live now on @nasa TV (without commentary), watch the release of the @spacex cargo craft from the space station targeted for 6:30pm ET... 

RT @spacex
Having delivered over 5,600 pounds of science and supplies, Dragon has completed its five-week stay at the @Space_Station and will depart at ~3:30 p.m. PST on Sunday. The Dragon used to support SpaceX’s 16th resupply mission previously delivered cargo to the ISS in 2017.

RT @Space_Station
.@Astro_DavidS opens the 7-windowed cupola to reveal the @spacex before it departs the station today at 6:30pm ET.

RT @Space_Station
The @spacex will now be released from the Canadarm2 at 6:30pm ET Sunday to take advantage of calmer sea states in the Pacific Ocean. 

RT @Space_Station
The @spacex cargo craft will stay a few more days at the space station as the crew gets back to science and maintenance duties. 

RT @Commercial_Crew
NASA and SpaceX are now targeting no earlier than February for the launch of Demo-1 to complete hardware testing and joint reviews. 

RT @Space_Station
The @spacex is packed with science and hardware today as teams wait for favorable weather in the splashdown area for Dragon’s return.