Old-fashioned astronomers (I) Published on March 15, 2022March 14, 2022 by fivecolorssandt@icloud.com Arlo Landolt The importance of calibration. Read More
Alphabetical order Published on March 2, 2021March 1, 2021 by fivecolorssandt@icloud.com An historical mistake We highlight an instance in which not knowing one’s history led to mistakes in astrophysics. Read More