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Astronomy Essentials
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Visible planets and night sky guide for November
Marcy Curran
November 2, 2026
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Halloween is an astronomy holiday. It’s a cross-quarter day
Bruce McClure
October 30, 2026
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Algol the Demon Star, named for its strange behavior
Editors of EarthSky
October 29, 2026
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Scientists to monitor skies for UFOs

Deborah Byrd
November 2, 2015
 min read

Update: 2015 TB145 likely a dead comet

Eddie Irizarry
October 31, 2015
 min read

Black hole flares from puzzling coronas?

Deborah Byrd
October 30, 2015
 min read

Cassini flyby of Saturn moon Enceladus

Deborah Byrd
October 28, 2015
 min read

Five see-through animals

Deanna Conners
October 28, 2015
 min read

Lifeform of the week: Corpse flower

Alex Reshanov
October 28, 2015
 min read

New Horizons aiming toward next target

Deborah Byrd
October 27, 2015
 min read

Milky Way photo with 46 billion pixels

Deborah Byrd
October 25, 2015
 min read

New Hubble views of earliest galaxies

Deborah Byrd
October 25, 2015
 min read

Hurricane Patricia slams into Mexico

Matt Daniel
October 24, 2015
 min read
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