Planets
The Building Blocks of Life May Have Come From Outer Space
Did meteorites seed Earth the building blocks of life?
February 2013 |
By Ker Than
Ten Enduring Myths About the U.S. Space Program
Outer space has many mysteries, among them are these fables about NASA that have permeated the public’s memory
April 15, 2011 |
By Mark Strauss
The Secrets Within Cosmic Dust
Dust captured by a spacecraft from a comet's tail holds clues to the origin of the solar system
December 2009 |
By Robert Irion
Fantastic Photos of our Solar System
In the past decade, extraordinary space missions have found water on Mars, magnetic storms on Mercury and volcanoes on the moons of Saturn
October 2009 |
By Laura Helmuth
The Planet Hunters
Nevermind the demotion of Pluto to a dwarf planet. Astronomers have found about 200 planets orbiting other stars, and they say it's only a matter of time before they discover another Earth.
October 2006 |
By Robert Irion
Life on Mars?
It's hard enough to identify fossilized microbes on Earth. How would we ever recognize them on Mars?
May 2005 |
By Carl Zimmer
A Bumpy Road to Mars
The president envisions a future human mission to Mars, but medical researchers say surviving the journey is no spacewalk
June 2004 |
By Jane Ellen Stevens
