There are signs that Earth's great stores of ice are beginning to melt. With sea levels beginning to rise, scientists are looking back at climates past to see where our planet may be headed 1000 into the future and beyond.
Scientists have been reconstructing the history of the Moon by scouring its surface, mapping its mountains and craters, and probing its interior. Find out what the Moon's tumultuous past can tell us about our own planet's beginnings.
City lights broadcast our existence into the night of space. Imagine how the Earth will look to astronauts in a century's time or longer? These images are incredibly difficult to take from a spacecraft traveling along at almost 28,000 kilometers per hour.
Earth's landmasses were not always what they are today. Continents formed as Earth's crustal plates shifted and collided over long periods of time. This video shows how today's continents are thought to have evolved over the last 600 million years, and where they'll end up in the next 100 million...
Scientists are intensively tracking the workings of planet Earth with satellites that chart its winds, ocean currents, temperatures, and more. With a new virtual Earth, converted into physical equations, they are revealing its workings in whole new ways.
An intimate tour of Earth's most impressive landscapes as captured by astronauts. Dr. Justin Wilkinson from NASA's astronaut team describes the special places that spacemen focus on whenever they get a moment.
Did liquid water once flow on Mars? Did the planet support life in any form? The answers may shed light on whether life-bearing planets are the norm in our galaxy run. Or is it a rare gem, with a unique make-up and history that allows it to support life.