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Universe, Solar System
Mar 15, 2004
Mysterious Sedna
Astronomers have discovered a mysterious planet-like body in the distant reaches of the solar system...
Earth
Mar 12, 2004
With the help of Earth-watching satellites, scientists can identify high-risk "hot spots" for deadly diseases before outbreaks strike...
Earth
Mar 5, 2004
By disturbing a massive ocean current, melting Arctic sea ice might trigger colder weather in Europe and North America...
Sun, Solar System
Mar 3, 2004
A Close Encounter with Jupiter
This week, Earth and Jupiter are only 400 million miles apart--the nearest the two worlds will be all...
Solar System
Mar 2, 2004
Meridiani Planum: "Drenched"
Long ago, parts of Mars were soaked in liquid water, say scientists analyzing data from NASA's Mars rover...
Solar System
Feb 25, 2004
Greenhouses for Mars
When humans go to the moon or Mars, they'll probably take plants with them. NASA-supported researchers are learning...
Feb 23, 2004
Microscopic Astronauts
It's unavoidable: Humans can't go to space without taking trillions of microbes with them. An experiment onboard...
Solar System
Feb 20, 2004
Radio Storms on Jupiter
Giant Jupiter is a source of odd radio noises. Now anyone can listen to them using a NASA-sponsored audio stream...
Universe, Sun
Feb 18, 2004
Black Hole Mayhem
Two x-ray telescopes have caught a black hole in the act of ripping a star apart.
Listen to this...
Solar System
Feb 17, 2004
Can People Go to Mars?
Space radiation between Earth and Mars poses a hazard to astronauts. How dangerous is it out there? NASA...