Did a Ring of Rocks and Dust Orbit Earth Before the Dinosaurs Roamed?

Scientists think a clustering of ancient impact craters points to a temporary ring around Earth hundreds of millions of years ago.

Earth's New Temporary Mini-moon Arrives This Weekend

Starting September 29th, another moon of sorts will briefly accompany Earth. The house-size asteroid will stick around less than 2 months.

This Week's Sky at a Glance, September 27 – October 6

This is the time of year when the rich Cygnus Milky Way crosses the zenith about an hour after full dark. Leo, best known as an evening constellation of late winter and spring, is already emerging in the dawn to begin its long annual apparition.

See Mutual Events, Close Approaches of Saturn's Moons

As Saturn’s rings narrow, now’s the time for its moons to shine.

September Podcast: Exploring Vega’s Neighborhood

Use this month’s Sky Tour podcast to check out a very special Harvest Moon, track down all five bright planets, and bounce around the Summer Triangle.

Presented by: Celestron.

Iowa Star Party

Enjoy a multi-day stargazing event under the dark skies of the Whiterock Conservancy near Coon Rapids, Iowa. In addition to dark skies and the opportunity to interact with other astronomy enthusiasts, the event offers camping, hiking and canoeing. 

Greenland Eclipse-Aurora Getaway, March-April 2025

Lots of travelers dream of visiting Greenland, and now Sky & Telescope will take you there — to be awed by dramatic glaciers, beautiful auroras, and a deep partial solar eclipse.