Proceedings of the National Academy of Sciences, Volume 123, Issue 3, January 2026. SignificanceUnderstanding how spaceflight impacts the human brain is crucial as space exploration and tourism expand. We find that the brain shifts upward and backward within the skull following spaceflight, with sensory and motor regions exhibiting the …
Observations from the Little Bunker
Last updated: January 27, 2026 08:12 PM
Atmospheric CO₂
428.6 ppm
+17.4
ppm/year
Atmospheric CH₄
1940.59 ppb
+-0.24
ppb/year
Global Temperature
+1.48 °C
Peak: +1.73°C
World Population
8.1 billion
+67
million/year