Ancient Universe Seen

Ancient Universe Seen

Astronomers have just seen galaxies from the first billion years of the universe. They are also racing to understand dark energy. More »

Space Travel: Humans vs. Robots

Space Travel: Humans vs. Robots

Bush proposes mission to moon and Mars, but how great are the scientific payoffs of this expensive, risky adventure? More »

Tornadoes: Power & Fury

Tornadoes: Power & Fury

Tornadoes kill 60 Americans each year. How do we predict tornadoes? How do we make houses safer? Where do tornadoes get their energy? More »

Earth Seen From Space

Earth Seen From Space

Earth Observing System uses satellites to accelerate earth science, oceanography, meteorology and global change. More »

Space Science: By Human or Robot?

Space Science: By Human or Robot?

Space shuttle Columbia has crashed, raising questions about research on the space shuttle and the International Space Station. More »

Globe Heating Up

Globe Heating Up

How do current conditions compare to past predictions of the effects of global warming? Are living on a warming planet? More »

Mars Has Big Ice!

Mars Has Big Ice!

Scientists have found ice on Mars. The frozen water, whose quantity may equal Lake Michigan, is within a meter of the surface. More »

Space Telescope Gets Fixed

Space Telescope Gets Fixed

Hubble Space Telescope is fixed, will add to history of discovery. Get a gander of galaxies, quasars, gamma ray sources, and more! More »

Floods: The Human Role

Floods: The Human Role

Flooding. We call it a natural disaster. But humans have a role. How do people promote flooding by cutting trees or draining wetlands? More »