Life began on the Earth around 3.5 billion years ago. Has the same thing happened somewhere else in the universe? On an icy moon? On a planet in the Goldilocks zone of a distant star?
Imagine if hypothetical aliens were looking for signs of life in our solar system. How might they investigate us from so far away?
Astronomers at the Royal Observatory Greenwich explain how we might detect each other with current technologies like ours in this animation with Beakus: Are there aliens?
Next, watch these handpicked videos:
• How to Find a Living Planet
• Bill Nye explains the Webb Space Telescope’s first images
• The Top 5 Places to Look for Alien Life
• Ocean Moon, Ocean World: The water beneath Europa’s icy surface
Bonus: Carl Sagan’s Cosmic Calendar from Cosmos.
This Webby award-winning video collection exists to help teachers, librarians, and families spark kid wonder and curiosity. TKSST features smarter, more meaningful content than what's usually served up by YouTube's algorithms, and amplifies the creators who make that content.
Curated, kid-friendly, independently-published. Support this mission by becoming a sustaining member today.