Cosmology: 5 things you need to know

Troubled by Hubble’s law? Perplexed by the Big Bang? Tune up your cosmic knowledge with answers to cosmology’s big questions.

Online extra: The CMB illuminated

Put the universe”s “earliest light” in perspective.

How to make 20 million galaxies

Astronomers transformed 25 terabytes of data into virtual galaxies to investigate cosmic evolution.

Online extra: Cosmic evolution in a computer

Watch 10 billion particles evolve into 20 million galaxies in this movie of the Millennium Run simulation.

Seeing the red limit

Here’s everything you need to understand how astronomers measure cosmic distances.

The Great Comet of 2007

Observers around the world got spectacular views of Comet C/2006 P1 (McNaught) – the brightest comet in 42 years.

Reflections on two comets

Comet McNaught’s multi-spiked tail bore a striking resemblance to that of 1744’s great comet.

All about the Hercules Cluster

Globular clusters like M13 helped astronomers refine our galaxy”s structure.

Online extra: Autostar tour of 25 globular clusters

Leading off with M13, take a tour of these deep-sky gems with your Meade go-to telescope.

How to avoid the astronomy blues

Many telescope buyers become discouraged after a short time. Here’s how I evaded that trap.

Deep-sky-object hunter

Meade’s LightBridge will help you see faint details in distant targets.


This month in Astronomy
Beautiful universe
Bob Berman’s strange universe
Glenn Chaple’s observing basics
Phil Harrington’s binocular universe

Gone to the dogs

Stephen James O’Meara’s secret sky
The sky this month
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