This week in SF history
— 2 January 2004: Stardust flies past Wild 2 (wikipedia.org)
— Whipple shielding (wikipedia.org)
Spaceflight news
— Chang’e 4 pre-landing summary (spacenews.com)
Short & Sweet
— SpaceX on schedule for its first commercial interplanetary launch. (teslarati.com)
— India to launch its own astronauts. (indiatimes.com)
— Crewed Orion spacecraft passes critical design review. (nasaspaceflight.com)
Questions, comments, corrections
— Peter via email: cosmic background radiation is only in the microwave spectrum