I was at a star party in Flagstaff last weekend and heard a newbie point at a great photo of M42 and say 'what galaxy is that?', which made me realize how common the mix-up is, so what's the best way to explain the difference between a nebula and a galaxy to someone just getting into this?
1mo ago
My coworker insisted we replace the thermal paste on a 5 year old gaming PC. It dropped temps by 15 degrees.
Did the same thing last year, it's a total game changer for old hardware.