Astronomy on MSN3mon
Finding your first astroimaging rig
Even the best quadruplet refractor won't produce good images if ... less chromatic aberration (blue halos around stars) with ...
The Washington Post21d
Rates of triplet births and higher dropped 62 percent from 1998 to 2023
From 1998 to 2023, the rate of triplet, quadruplet and other higher-order multiple births dropped from 193.5 per 100,000 total births to 73.8 per 100,000, the CDC said. Declines occurred for every ...