In deep waters near the eastern Czech Republic town of Hranice lies the world's deepest underwater cave.
Water crisis spurs protests within First Nation community
Renowned tourist destination to ban cars along famous river
Elon Musk lets us in on his plans for putting humans on Mars
See Rosetta's final views as it descended to a comet crash
Auroras to shine across Canada due to speedy solar wind
New video shows Montreal meteor flash through the night sky
Is it true that night temperatures will normally be higher when it's cloudy?
Every planet with an atmosphere has clouds. That includes the moon.
Autumn sunflowers in Prince Edward, ON: Photo by Jack Tweedy