Three years after California state parks were discovered to have mismanaged millions of dollars, a task force issued recommendations for how to manage and fund the state park system.
Curiosity has reached the base of Mount Sharp, its primary mission goal. It's a 3-mile-high mound of sediment that preserves a geologic record of Mars going back billions of years.
Investigation of an ancient Martian meteorite has re-fueled a debate about evidence of possible past life on Mars.
Experts have tracked a group of rare meteorites back to a single source on Marsthe crater Mojave near the red planet's equator.