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NASA honors Hubbles discovery of a new universe
Monday, January 27, 2025 by Russ Scritchfield
At the beginning of the 20th century, astronomers were perplexed by the vast number of nebulous objects scattered across the night sky. French astronomer Charles Messier had cataloged over 100 such objects in the late 1700s, most of which were identified as star clusters, nebulae, supernova remnants...
Accumulation of dust particles examined
Thursday, November 14, 2024 by Russ Scritchfield
In a fascinating exploration of the cosmos, astronomers have been delving into the accumulation of dust particles in space, particularly focusing on the reflection nebula known as vdB 9 in the constellation Cassiopeia. This nebula is illuminated by the Cepheid variable star SU Cassiopeiae, whose blu...
Edwin Hubble won the Great Debate
Thursday, November 7, 2024 by Richard Harris
I live in the Ozarks, just about 15 miles from Edwin Hubble's birthplace. The Hubble Space Telescope (HST) continues to fascinate me - both for the incredible views it has provided us and the profound questions it keeps raising about our universe. By the onset of the 20th century, the field o...
Galaxy visualization project
Thursday, September 12, 2024 by Richard Harris
It was 1923 and Edwin Hubble (eh hum born not far from me), using the 100-inch Hooker Telescope at Mount Wilson Observatory, was able to resolve individual stars in the Andromeda Nebula (M31), including Cepheid variables. By measuring the period of these Cepheids, Hubble calculated their distan...