For a nation that explores
Did Mars once have oceans? Dueling theories provide conflicting pasts for the Red Planet. Image Credit: NASA / Goddard Space Flight Center
The debate over the history of water on Mars first began even before the first spacecraft flew by the planet. But after Mariner 4 scientists learned that Mars was currently devoid of […]
New Horizons historic flyby of Pluto on July 14th. Click here to follow the progress of the spacecraft with our New Horizons event tracker.