So much of what we consider to be normal here on Earth is a direct result of how our planet revolves around the sun (like seasons and temperatures around the globe). We put Earh into warp speed to see what a year's worth of planetary orbit looks ...
The discovery of a baby gas giant planet orbiting a young, 12 million-year-old star means that these types of planets can form much more quickly than previously thought. Jorge Ribas reports on the finding.
NASA's Spitzer Telescope discovered evidence that a high-speed collision between two planets happened thousands of years ago. Scientists think this type of collision is how planets, like the Earth, are formed.
There is a gigantic amount of manmade clutter surrounding planet Earth and it could be harmful to humans. Is there a way to clean up the huge amount of space junk?
A thousand years of observations reveal that there are stars that move in the sky and follow patterns, showing that the Earth is part of a solar system of planets separate from the fixed stars.
Will the real ET be little green men or little green bacteria? SETI Institute Senior Astronomer Seth Shostak theorizes what our first alien encounter might be like.
Biologist J. Craig Venter helped crack the human genome. His next goal: create life. Jorge Ribas talks to him about the promise and perils of synthetic biology.
Mars time and Earth time are so similar, scientists working on the Phoenix Mars Lander mission are in a constant state of jet lag. Space producer Dave Mosher finds out how they're coping with the ever changing clock.