RT @NASAglenn: Touchdown! NASA’s Super Guppy aircraft has safely landed at Mansfield Lahm Airport. Welcome to Ohio, @NASA_Orion!  https://t.co/PQMF5QHr9W

Each second, 1.5 million tons of solar material shoot off the Sun into space. The magnetosphere shields Earth, but the solar wind can get in near the poles and disrupt satellite, radio & GPS signals. 3 new missions aim to improve this technology problem: https://t.co/EER7pSZWZM https://t.co/YO3CuTXnHi

50 years ago, the #Apollo12 capsule carrying Pete Conrad, Dick Gordon & Alan Bean splashed down in the Pacific and was brought aboard the @USNavy's USS Hornet. Also coming back from the Moon: lunar samples and pieces of our robotic Surveyor 3 spacecraft. https://t.co/o1HGUXWSLa https://t.co/kpEImgswfH

Using 2011 floods in Southeast Asia as a case study, @NASAGoddard researchers found emergency responders could save an average of 9 minutes per response using satellite data. It's the first step in developing a model that can be used in future disasters. https://t.co/wxUyp8Taui https://t.co/RedDi1gM0y

Are Ceres and Vesta giant asteroids or dwarf planets and how did our Dawn mission explore them? How do we track asteroids moving through our solar system? And... is Pluto a planet? 🤔
  Listen & subscribe to @NASAJPL's "On a Mission" podcast for more: https://t.co/Oy68du3x9Y https://t.co/18B6Z7EVPS

RT @ISS_Research: Research will soon be headed to space inside a @SpaceX Dragon capsule! That science includes Earth imaging, fire, barely and bone and muscle loss research. 
https://t.co/5lZo72yswo https://t.co/cBP5ZtbnFk

Our @NASAKennedy Space Center has a podcast, and it's all about launching rockets! 
  Listen and subscribe for a behind-the-scenes sneak peek into the inner workings of the world’s premiere spaceport: https://t.co/6Un0eOEfU7 https://t.co/2zJiS3gA6B

A major step forward for @Commercial_Crew this week: @BoeingSpace's #Starliner spacecraft rolled out of the processing facility and was secured atop a @ulalaunch rocket. Starliner's first launch, an uncrewed test flight to @Space_Station, is Dec. 17. https://t.co/40T6hj5wu2 https://t.co/fvSlI9oVFF

This week:

‍ ‍ Spacewalkers work on a cosmic particle detector
  Partnering with companies to send payloads to the Moon
 A key finding on Jupiter's moon Europa

These stories and more: https://t.co/JE8xQfdrt8 https://t.co/w2TmOrDQNy

 Baby stars!  Our @NASAHubble telescope turned its powerful eye towards galaxy NGC 3749, over 135 million light-years away from Earth. This galaxy displays strong emission lines, suggesting it might be bursting with star formation & stellar newborns. https://t.co/ZJaNJZN99R https://t.co/V35rnL4mux

This week, spacewalks to repair a cosmic ray detector continued outside @Space_Station. The @BoeingSpace #Starliner crew spacecraft rolled out in preparation for a targeted Dec. 17 test flight. More on this week's #SpaceToGround: https://t.co/cHFnZH5JEg https://t.co/vG6qsTnyiV

RT @Astro_Jessica: Our workspace for the day...flying @csa_asc’s #Canadarm2 to support the 2nd spacewalk repairing the Alpha Magnetic Spectrometer (AMS) on @Space_Station. Many camera views required to carefully maneuver @astro_luca around the worksite. Read more about AMS in my Instagram story! https://t.co/9UgniVv1wc

4 years in the making, today's #spacewalk to repair the Alpha Magnetic Spectrometer ended after 6 hours & 33 minutes at 1:35pm ET. @AstroDrewMorgan & @Astro_Luca completed all tasks, including cutting steel tubes in space for the 1st time. Get the details: https://t.co/Dzy15ku9mh https://t.co/LRlH9SBE3L

RT @Space_Station: .@Astro_Luca rides the @CSA_ASC #Canadarm2 robotic arm carefully and precisely operated by @Astro_Jessica to make sure the spacewalkers can access the station's cosmic particle detector. #AskNASA | https://t.co/yuOTrZ4Jut https://t.co/LWEMUqntIw

Watch as @Astro_Luca cuts 6 of 8 stainless steel tubes in the vertical support beam – a task never done before outside the @Space_Station –  that will be connected to the cosmic ray detector's cooling system on the next spacewalk. : https://t.co/cYFxNkJiIS https://t.co/Hwgx6WT9Z4

RT @Space_Station: #DYK: The spacewalkers have an emergency jetpack attached to their spacesuits called the "SAFER." @shadow404 wants to know, "What is the SAFER system and how does it work?" #AskNASA | https://t.co/yuOTrZ4Jut https://t.co/G6RR7DcScH

This spacewalk is 1 of the most complex of its kind, repairing a cosmic ray detector so sensitive it was never designed to be fixed. @AstroDrewMorgan & @Astro_Luca will:
 
 Cut tubes
 Disable the cooling system
 Prep power cable connection
 
Watch: https://t.co/cYFxNkJiIS https://t.co/EKIprSmboh

Today's intricate spacewalk is among the first-of-its-kind, repairing the Alpha Magnetic Spectrometer (AMS). Here's a breakdown of the cosmic particle detector: https://t.co/t4GCSlUsAp

In this helmet cam view from @Astro_Luca you can see the first task of today’s spacewalk underway - the Power Cable Preparation task. Here, Luca is exposing the power cables that will eventually power the Alpha Magnetic Spectrometer. Watch: https://t.co/cYFxNkJiIS https://t.co/EkD3C3ULEO

RT @esaspaceflight: An astronaut's commute to work. @astro_luca is taking photos and videos as he goes and reports the view as "amazing" just off the east side of Africa. https://t.co/uQabOPbn8d