March 2011: After Earth

The case for populating the universe--and how we'll get there

March 2011: After Earth

What's New

Features

Where we'll live when our planet is no longer our home By Ben Austen

How oceanographers track the weather two miles beneath the sea's surface By Donovan Hohn

Inspired by the Human Genome Project, scientists are comprehensively mapping other human biological systems By Brooke Borel

The thousands of species of bacteria coating our bodies inside and out may be the key to understanding--and treating--a host of diseases By Virginia Hughes

Headlines

How 2.0

FYI

Megapixels

[

](http://itunes.apple.com/us/app/popular-science/id364049283?mt=8)