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.
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.
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.
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
Bob Berman’s strange universe
Glenn Chaple’s observing basics
Phil Harrington’s binocular universe
Web extra: Strum the Harp
Stephen James O’Meara’s secret sky
The sky this month