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Are Your Online Passwords as Safe as You Think?
Hackers can crack a 7-character password in seconds. But it can take 100 years to crack a 12-character one when it has letters, numbers and symbols. Here's one strategy to make one.
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53:34
What are the weirdest worlds in our solar system, and how did they come to be?
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53:34
Discover the dramatic forces creating spectacular weather on neighboring planets and moons.
53:38
Explore big discoveries that have revolutionized our understanding of the universe.
53:10
Follow the quest to recover DNA millions of years old for the very first time.
53:15
Explore the engineering behind Paris’s iconic landmark, the tallest structure of its time.
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53:17
New evidence reveals the real story of Easter Island and the builders of its stone heads.
53:35
Giant fossils uncovered in the Sahara Desert reveal new secrets of how whales evolved.
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53:30
A family turns to science in their struggle to rediscover a history obscured by slavery.
