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Astronomy Essentials
Proxima Centauri is the closest star to our sun
Deborah Byrd
October 14, 2026
Astronomy Essentials
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Visible planets and night sky guide for October
Marcy Curran
October 13, 2026
Astronomy Essentials
Constellations
Meet Aquarius the Water Bearer and its stars
Bruce McClure
October 13, 2026
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Astronomy Essentials
Proxima Centauri is the closest star to our sun
Deborah Byrd
Kelly Kizer Whitt
October 14, 2026
Today's Image
Did you see a strange cloud on the East Coast?
Many people up before sunrise on Tuesday morning saw a strange cloud. It was the plume from a SpaceX rocket headed for the space station.
Kelly Kizer Whitt
October 13, 2026
Sun
Sun news: Auroras tonight? Sun-stuff and solar wind incoming
Sun news, October 13, 2026: Fast solar wind from a coronal hole and a burst of sun-stuff might trigger G2 (moderate) storms and auroras tonight.
C. Alex Young
Armando Caussade
Raúl Cortés
October 13, 2026
Human World
Space
NASA’s Perseverance rover on Mars sets off-world driving record
The Mars Perseverance rover has set a new distance record on Mars. It has driven 28.10 miles (45.22 km) across the surface of the red planet.
Deborah Byrd
October 13, 2026
Space
Weirdest cloud on Mars formed via ‘exotic physics’
The weirdest cloud on Mars has a funny-sounding name. Scientists call it the Arsia Mons Elongated Cloud. Come find out what's weird about it!
Paul Scott Anderson
October 13, 2026
Astronomy Essentials
Tonight
Visible planets and night sky guide for October
Visible planets and night sky guide. This evening, look for the thin moon near red Antares, the brightest star in Scorpius the Scorpion.
Marcy Curran
John Jardine Goss
Deborah Byrd
Kelly Kizer Whitt
October 13, 2026
Astronomy Essentials
Constellations
Meet Aquarius the Water Bearer and its stars
Aquarius lies in a “watery” part of the sky, near Pisces the Fish, Cetus the Whale, Eridanus the River and Piscis Austrinus the Southern Fish.
Bruce McClure
October 13, 2026
Earth
Amazon wildfires hide another threat to the rainforest
Amazon wildfires are weakening the rainforest’s ability to absorb carbon, as ozone pollution damages trees that survive the flames.
Cristina Ortiz
October 12, 2026
Earth
Arizona’s Chiricahua poised to become 64th US National Park
Chiricahua National Monument in the southeastern corner of Arizona is poised to become the U.S.'s 64th national park. Read more about it here.
Kelly Kizer Whitt
October 11, 2026
Clusters Nebulae Galaxies
Check out the Double Cluster in Perseus on October evenings
The Double Cluster in Perseus is a breathtaking pair of open star clusters, easy to see in October. Here's how to find it in your sky.
Bruce McClure
October 11, 2026
Earth
Isaias is a major hurricane, headed for the Gulf Coast
Hurricane Isaias is the 1st hurricane of the 2026 Atlantic season. It is now a major hurricane, making landfall around midnight tonight near Pensacola.
Rachel Duensing
October 9, 2026
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Space
View All
NASA’s Perseverance rover on Mars sets off-world driving record
Deborah Byrd
October 13, 2026
Weirdest cloud on Mars formed via ‘exotic physics’
Paul Scott Anderson
October 13, 2026
Another satellite breakup raises concerns about space junk
Kelly Kizer Whitt
October 9, 2026
Did formaldehyde on ancient Mars help kickstart life?
Paul Scott Anderson
October 9, 2026
Astronomy Essentials
View All
Proxima Centauri is the closest star to our sun
Deborah Byrd
October 14, 2026
Visible planets and night sky guide for October
Marcy Curran
October 13, 2026
Meet Aquarius the Water Bearer and its stars
Bruce McClure
October 13, 2026
Meteor shower guide 2026: Up next … the Orionids
Editors of EarthSky
October 9, 2026
Earth
View All
Amazon wildfires hide another threat to the rainforest
Cristina Ortiz
October 12, 2026
Arizona’s Chiricahua poised to become 64th US National Park
Kelly Kizer Whitt
October 11, 2026
Isaias is a major hurricane, headed for the Gulf Coast
Rachel Duensing
October 9, 2026
Why leaves change color in the autumn
EarthSky Voices
October 9, 2026
Human World
View All
NASA’s Perseverance rover on Mars sets off-world driving record
Deborah Byrd
October 13, 2026
Smart scopes are amazing. Here’s why I love mine
Marcy Curran
October 6, 2026
World Space Week is October 4 to 10. Find events here
Kelly Kizer Whitt
October 4, 2026
October birthstone: Colorful opal and tourmaline
Editors of EarthSky
October 3, 2026