Asteroid Discovery - 1980-2012 - UHDTV : <p>The latest update to the asteroid discovery video, now at UHDTV resolutions and with a voiceover explaining what's going on.</p>
World Map of futur total solar eclipses : <p>To see a total solar eclipse, you have to be in exactly the right place at exactly the right time—inside the moon’s dark inner shadow as the earth,...