What lurks between galaxies?

An ever-expanding portion of the cosmos contains virtually nothing, but what little there is may tell astronomers how galaxies formed and evolved.

Will supernovae shine new light on dark energy

Bob Berman goes behind the scenes at Carnegie Observatories to get the scoop on an unprecedented survey of exploding stars.

Web extra: Cosmology Q&A with Wendy Freedman

Why do we think dark energy exists? And what will supernovae tell us about the fate of the universe? One of the world’s leading cosmological observers explains.

All about the Dumbbell Nebula

One of the sky’s greatest showpieces reveals a snapshot of the solar system’s future.

Visit your friendly neighborhood observatory

You don’t have to travel as far as you might think to get spectacular views through a telescope.

Web extra: Observatories fascinate, educate, and entertain

Activities abound at your neighborhood observatory.

Seeing in the Dark

Timothy Ferris takes on his greatest challenge in film-making: recreating the sights, sounds, and emotions of stargazing.

Web extra: Sneak a peek at Seeing in the Dark

Timothy Ferris’ documentary features the voices of amateur astronomers.

Meade’s affordable large refractor

The LXD75 AR-6 AT achromat delivers high-quality performance.


This month in Astronomy
Beautiful universe
Bob Berman’s strange universe
Phil Harrington’s binocular universe

Web extra: Strum the Harp

Stephen James O’Meara’s secret sky
The sky this month
New products
Coming events
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Reader gallery