Explore Vesta, the second largest asteroid in the belt, in this captivating photo by the Dawn spacecraft. Get ready for a year of intriguing discoveries!
The Earth is only a speck of dust in the grand scale of the universe. There are stars that would even dwarf our Sun. If you thought that Aldebaran was huge, wait until you see supergiant or hypergiant stars like Betelgeuse, Antares or VV Cephei!
This animation depicts the artist's vision of the key events of the future NASA's Mars Science Laboratory mission. It is planned to launch in late 2011 and reach Mars in August 2012. The rover will be called "Curiosity".