Telescopes and Equipment I have a 70-millimeter refracting telescope. Would a scope with a larger diameter make objects look bigger or closer?
Science I read somewhere that mercury is being used to make liquid-mirror telescopes. What are the advantages of collecting light this way?
Exotic Objects Do black holes and their accretion disks always spin in the same direction? Does a supermassive black hole always spin in the same direction as its host galaxy?
Solar System Saturn’s rings are said to contain chunks of icy debris as big as cars. Why are none of the larger particles visible in the Cassini photos?
