My newest essay, this time it's about galaxies.
starwalk.substack.com/p/galaxies
starwalk.substack.com
Galaxies
On one of these cool, clear spring evenings, go outside and look toward the south.
Bob Riddle
@currentsky.bsky.social
388 followers 125 following 452 posts
Retired Teacher (Earth Science/Planetarium Director-43 yrs.). Former Column Editor Scope on the Skies, Science Scope Magazine (NSTA). NASA Volunteer Educator Since 1985: Cassini Fellow; ISTP; SSEP;SSA. Day or night photography
