Over time, these arrowhead-shaped piles of sand are pushed across the desert by the wind and move in the opposite direction ...

Planet Labs’ founders - who have vowed to help end war for all time by mapping war crimes worldwide - steal the show in HBO’s ...

Data from NASA satellites show a plunge in freshwater on Earth since May 2014, with 13 of the 30 most powerful droughts ...

Many science fiction movies rack up body counts with alien battles or robot wars, but here are several sci-fi films where ...

Once they grow up into adults, dragonflies breathe through holes and tubes in the sides of their bodies called spiracles.

From jaw-dropping ventures of astronauts to the possibilities of alien life, these 10 documentaries about space on Netflix ...