Catch Interstellar Comet 3I/ATLAS at Dawn and See a New Nearby Super-Earth Candidate

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Read news from the world of astronomy for the week of October 31, 2025.

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Happy Halloween! 🎃 This week in the world of astronomy, spot a nearby super-Earth candidate less than 20 light-years away and catch interstellar Comet 3I/ATLAS at dawn. Plus, relive the life and legacy of telescope-optics pioneer Al Nagler, who passed away earlier this week.

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All Eyes on Interstellar Comet 3I/ATLAS


An alien comet will soon depart from the Sun’s glare and enter the morning sky. Get ready for the observing opportunity of a lifetime.

Astro-News Highlights

A Super-Earth Candidate Less Than 20 Light-Years Away


Astronomers have discovered a ready-to-image super-Earth candidate less than 20 light-years away.

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Al Nagler (1935–2025)


Albert H. Nagler, a pioneer of telescope optics, passed away at the office of his company Tele Vue Optics on Monday, October 27th. He was 90 years old.

Gravitational Wave Detectors Spot Merging Black Holes That Have Merged Before


Two recent discoveries of black hole mergers add to the evidence that such mergers happen over and over again.

Maya 260-day Calendar Provides Key to Solar Eclipse Predictions


A new study has found that the 260-day ritual calendar is the key to understanding how the Maya predicted solar eclipses.

Observing Highlights

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This Week's Sky at a Glance, October 30 –November 9


Halloween evening this year finds the waxing gibbous Moon shining in the south with yellowish Saturn glowering to its left (by almost two fists at arm's length). Farther below the Moon twinkles lonely Fomalhaut.

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October Podcast: Pegasus Leads the Way


Pegasus is a large, distinctive constellation that’s easy to spot. During October, you can use it — along with Saturn — to find some amazing celestial sights in their vicinity.

Presented by: Celestron.

Community

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Stargazing in Dalby Forest


Join the Scarborough & Ryedale Astronomical Society for their stargazing event at the Low Dalby Astronomy Centre.

Pull the One That Performs


Good filters show the nebula. Great ones reveal the structure. Chroma delivers the contrast, consistency, and confidence to capture what others miss.

Attend the Super Bowl of Astronomical Sciences


Experience three days of the latest and greatest astronomical discoveries presented by the rockstars of astronomy. 

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