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What is time? A deceptively simple question, yet it is the key to understanding relativity. It is sort of the reason my hair is going gray. [laughter] When we describe...
– [Narrator] Glaciers have been shaping our world for millions of years. But as climate change warms the planet, glaciers are disappearing, not only altering the landscapes they leave behind,...
[bees buzzing] NEIL DEGRASSE TYSON: For thousands of years, bees have been symbols of mindless industry. We always think of them as being something like biological robots, doomed to live...
Easter islands moai now multi tons statues some measuring more than 20 Terry Hunt Archaeologist meters in length and weighing more than 75 tons were carved out of the islands...
– [Narrator] The ground begins to tremble. – [Announcer] Three. – [Narrator] Massive engines roar to life. – [Announcer] Two. – [Narrator] Billowing clouds of exhaust. – [Announcer] One. –...
(gentle music) – [Narrator] Like buried treasure, they lie hidden from sight. Echoes of an ancient past, they whisper secrets and tell tales once lost to time. What are fossils...
(gentle music) – [Narrator] Coral reefs, their bright, vivid colors can be seen in tropical ocean waters around the globe. Beyond their brilliant appearance lies a hidden significance. What are...
snow leopards are one of the world’s most elusive cats nicknamed ghosts of the mountains they live in the world’s highest ranges and are one of the least understood felines...
if there’s one animal that lives up to the saying you are what you eat it’s probably the giant panda nearly every aspect of a panda’s life revolves around bamboo...
While billions of stars are scattered throughout the universe the one at the center of our solar system Plays a special role for us here on earth our Sun formed...
