tushar0119

Kepler measures the brightness of stars. The data will look like an EKG showing the heart beat. Whenever a planet passes in front of its parent star as viewed from the spacecraft, a tiny pulse or beat is produced. From the repeated beats we can detect and verify the existence of Earth-size planets and learn about the orbit and size of the planet. The scientific data from Kepler come in a different way than most astronomy missions. The Kepler spacecraft will not produce pretty pictures or even colorful spectrograms, but rather light curves derived from brightness changes collected from transits. Credit: NASA Ames and Dana Berry

Highly realistic animation of the NASA Mars Discovery Rover. Almost identical to the new NASA Mars Rover 2020.

The moon is divided into two major terrains: the older, brighter heavily cratered lunar uplands and the darker, younger maria.