Testing the Space Launch System
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ISS Daily Summary Report – 12/17/2018
Airway Monitoring: Today the crew performed the setup activities for the upcoming Airway Monitoring US Lab (ambient) session. The Airway Monitoring investigation aims to determine in detail the pulmonary nitric oxide (NO) turnover in weightlessness and in combined weightless, hypobaric and hypoxic environments. The goal is also to determine the lung diffusion capacity for NO …

December 18, 2018 at 12:00AM
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A Rainbow Geminid Meteor
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ISS Daily Summary Report – 12/18/2018
Change of Command Ceremony:  Expedition 57 CDR Alexander Gerst handed off station command to Expedition 58 CDR Oleg Kononenko this afternoon. The Expedition 57 Crew (Alexander Gerst, Sergey Prokopev, Serena Auñón-Chancellor) are scheduled to undock from ISS tomorrow, December 19 at 7:40PM CT with landing set to occur at 11:03PM CT.  Advanced Plant Experiment-05 (APEX-05): …

December 19, 2018 at 12:00AM
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SpaceX’s Crew Dragon Spacecraft and Falcon 9 Rocket
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NASA Astronaut, Crewmates Returns to Earth After 197-Day Mission in Space
Three members of the International Space Station’s Expedition 57 crew, including NASA astronaut Serena Auñón-Chancellor, returned to Earth Thursday, safely landing at 12:02 a.m. EST (11:02 a.m. local time) in Kazakhstan.

December 20, 2018
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NASA Astronaut, Crewmates Return to Earth After 197-Day Mission in Space
Three members of the International Space Station’s Expedition 57 crew, including NASA astronaut Serena Auñón-Chancellor, returned to Earth Thursday, safely landing at 12:02 a.m. EST (11:02 a.m. local time) in Kazakhstan.

December 20, 2018
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Station Crew Back on Earth After 197-Day Space Mission
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ISS Daily Summary Report – 12/19/2018
55 Soyuz (55S) Undock and Landing: The 55S crew, Sergey Prokopev, Alexander Gerst, and Serena Auñón -Chancellor, are scheduled to return to Earth tonight. Undock is scheduled for 7:40 PM CT with landing at 11:03 PM CT. The crew is scheduled to arrive at Ellington on Friday, December 21. Bone Densitometer Calibration: The crew performed …

December 20, 2018 at 12:00AM
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Extraordinary Solar Halos
via NASA https://go.nasa.gov/2LtZach

#NASA日常
新视野号航天器预计在 2019 年 1 月 1 日与柯伊伯带内名为“Ultima Thule”的小行星（486958）相遇。你可以将一句问候语同你的名字发送给新视野号，为“Ultima Thule”带去问候。从地球到新视野号，你的信息预计在宇宙中以光速旅行大约 6 小时。
此活动即将截止。

提交地址：http://pluto.jhuapl.edu/Send-Greetings/

Celebrating the 50th Anniversary of Apollo 8's Launch Into History
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A Cold December Night
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Earthrise: A Video Reconstruction
via NASA https://go.nasa.gov/2rSGQRc

Earthrise 1: Historic Image Remastered
via NASA https://go.nasa.gov/2BCp2hx

M100: A Grand Design Spiral Galaxy
via NASA https://go.nasa.gov/2AcD75q

NGC 6357: The Lobster Nebula
via NASA https://go.nasa.gov/2EJYLRE

The Great Carina Nebula
via NASA https://go.nasa.gov/2EQvGEi

NGC 1365: Majestic Island Universe
via NASA https://go.nasa.gov/2SlQAPi