The 6 Places on Earth That Most Resemble Other Planets

Space researchers uses deserts, valleys, and freezing lakes to test equipment and simulate procedures on space missions.

Here’s where they put future exploration to the test – without leaving our planet


Why Spring Starts Today

Here’s the science behind the first day of spring called the vernal equinox, along with seasons on Mercury, Mars and other planets.


Two planets found sharing one orbit

Buried in the flood of data from the Kepler telescope is a planetary system unlike any seen before: Two of its apparent planets share the same orbit around their star


Some Planets Play a Mean Game of Pool

Astronomers have found six large planets whose off-kilter orbits suggest that they crashed through their solar systems, swallowing any smaller planets that got in their way.

The findings indicate that solar system formation is often disorderly and unpredictable, and that some potential cousins of Earth may have been destroyed in the chaos.