From the February 2011 issue

Bob Berman’s Strange Universe: Puzzlers: a baker’s dozen

April 2011: Test your knowledge with these cosmic brain teasers.
By | Published: February 21, 2011 | Last updated on May 18, 2023

berman

Do you like challenges? Hearing amazing things you didn’t know? Then let me turn 13 astro-oddities into a contest.