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Visible planets and night sky guide for September
Marcy Curran
September 6, 2026
Constellations
Octans and Apus circle the south celestial pole
Kelly Kizer Whitt
September 6, 2026
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Cassiopeia the Queen ascends in September and October
Editors of EarthSky
September 4, 2026
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I’m dreaming of a white Christmas!
Matt Daniel
December 21, 2012
min read
Ultramassive black holes: How big can a black hole get?
Editors of EarthSky
December 20, 2012
min read
Temperature records from nature reaffirm climate warming
Matt Daniel
December 20, 2012
min read
Astronomers identify stars in the Milky Way’s central bar
Deborah Byrd
December 19, 2012
min read
This date in science: Apollo 17 returns with orange soil
Elizabeth Howell
December 19, 2012
min read
The aurora borealis and the coming Solar Maximum
EarthSky Voices
December 18, 2012
min read
Welcome to norovirus season
Alex Reshanov
December 18, 2012
min read
GRAIL moon probes’ crash site named for astronaut Sally Ride
Deborah Byrd
December 17, 2012
min read
Estimate suggests Milky Way mass of 1.6 trillion suns
Deborah Byrd
December 17, 2012
min read
2012 extraordinary year for wildfires in US
Editors of EarthSky
December 16, 2012
min read
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