Discover a Potential Dark Matter Particle and Surprising Changes in an Asteroid's Rings

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This week in the world of astronomy, discover surprising changes in an asteroid's rings and watch the crescent Moon sidestep Venus. Plus, have scientists finally found a dark matter particle?

This Week's Sky at a Glance, September 11 – 20

Very low after sunset, the crescent Moon steps past Venus from Sunday to Monday. A couple days later, it steps past higher Antares.

Scientists Found a Potential Dark Matter Particle — What Happens Now?

The recent detection from the LUX-ZEPLIN experiment could point to “heavy” dark matter.

Webb Telescope Discovers Surprising Changes in an Asteroid’s Rings

Painstaking observations have revealed unexpected evolution in the rings around Chariklo, a tiny outer-solar-system object.

Visit Shop @ Sky for Atlases, Globes, and More!

Observing Highlights

Meet Arcturus: Guardian of the Bear

Arcturus is one of the brightest stars in the sky — a cool red giant in Bootes, the Herdsman, that's often tied mythologically to Ursa Major, the Bear.

How to Photograph the Northern Lights

Follow these tips to help capture auroral displays.

September Podcast: Vega & Its Vicinity

This episode takes you on a tour of the stars and planets that you’ll see overhead during September.

Presented by: Celestron.

Statewide Star Party at the Bell!

Across the state, people will be looking up at the sky this weekend and learning about Minnesota’s official constellation during the Bell Museum’s Statewide Star Party

John Wagoner: Salesman for the Stars

Every astronomy club, if it’s lucky, counts among its members one who is fired with a life purpose of bringing the night sky to everyone. In the Texas Astronomical Society, that member was John Wagoner.

The Universe in 16 Weeks

This online course from Astronomy Teacher fosters curiosity and the scientific method. Classes are Tuesdays from 7:30-9:00 pm (ET) September 29, 2026 thru January 12, 2027. May the Course Be with You!