Solar System
The Earth's solar system, including the sun, moon, planets and satellitesExplorer I Satellite
In 1958, Explorer 1 launched America's response to the USSR's Sputnik
January 2008 |
By Owen Edwards
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
Splendid Isolation
When the first astronauts to walk on the Moon returned from their July 1969 lunar expedition, they were confined to quarters
July 2004 |
By Owen Edwards
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
Celestial Sightseeing
From Triton's active geysers to the Sun's seething flares, newly enhanced images from U.S. and foreign space probes depict the solar system as never before
November 01, 2003 |
By Michael Benson
Caution, Planets Ahead
The world's largest (maybe) 9-planet solar system model goes up along Route 1 in northern Maine
March 2003 |
By Sam Hooper Samuels
Look! Up in the sky! It's a bird! It's a planet. It's a very large ball of ice!
It's Pluto, with its moon, Charon
March 2002 |
By David Holzman
