Light speed is often known as the speed limit of the universe. But in the vastness of space, even the speed of light seems slow.
Since dwarf planets started being classified in 2005, nine have been recognized. Here we visually introduce the dwarf planets in our solar system.
For centuries, humankind has looked at Mars from afar. In the past 75 years, space exploration has made it possible to create a map of Mars...
This infographic highlights some of the major problems we'd need to solve to make other planets like Mars more hospitable to human life.