SUNSET: 
ASTRONOMY & OBSERVING NEWS
Unlocking the History of Globular Cluster Messier 5
A new study uses precise measurements of chemical elements to explore the formation history of one of the oldest globular clusters in the Milky Way.
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observing guides
Where to Look Tonight
This Week's Sky at a Glance, October 22 – 30
This Week's Sky at a Glance, October 22 – 30
As fall proceeds, Jupiter and Saturn shift westward and tilt ever more steeply. Venus gets a little higher and brighter. The waning Moon passes the Pleiades. And as Halloween approaches, Arcturus becomes the Ghost of Summer Suns.
where to lookOctober: Three Planets at Dusk
Sky Tour Podcast
Take advantage of October's crisp, clear evenings and early-arriving dawns to explore the nighttime sky with our audio guided tour.
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Stargazing in Northumberland at Twice Brewed Observatory
Hexham NE47 7AN, United Kingdom
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Stargazing in Northumberland at Twice Brewed Observatory
Hexham NE47 7AN, United Kingdom
Our Community
Astronomers often spend their time lost among the stars, but the science of astronomy and the hobby of stargazing are also communal affairs. So, don’t be a stranger—find a group to get involved with today!
Editor's PICKS
Star Trails over Magellan Telescopes
Photographer: laslan
Photographer: Jeff Reitzel
The Small Magellanic Cloud from Dark Andean Skies
Photographer: Hal Heaton
Comet C/2019 L3 (ATLAS) 2021,Sep.11
Photographer: Pepe Chambó
Photographer: Logan Carpenter
Photographer: Antonio Gonzalez
Photographer: soumyadeepmukherjee
Photographer: AliAbbasiPov
Photographer: jason.dain
Photographer: Steve Leonard
"Ptolemaeus, Alphonsus and Catena Davy"
Photographer: Fabrizio Antonucci
Photographer: Giancarlo Melis
Photographer: soumyadeepmukherjee
Large Solar Prominence - Sept 11, 2021
Photographer: Behyar Bakhshandeh
Photographer: Jeff Reitzel
Photographer: KuriousGeorge
Photographer: Robert-Fields
Photographer: Ralph-Ford
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Issue Highlights
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Remembering Henrietta Swan Leavitt
Dava Sobel
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Small-Scope Winter
Brian Ventrudo
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The Short, Violent Lives of Magnetars
Matthew R. Francis