Stephen Hawking addressing Royal Society

The video discusses the impact of the Kepler mission on our understanding of life possibilities in the universe, highlighting the abundance of worlds and organic molecules. It explores the evolution of life and intelligence on Earth, noting the rarity of technological intelligence. The video warns about the fragility of such intelligence and the potential risks of contacting alien civilizations, drawing parallels with historical human encounters.

What significant discovery has the Kepler mission contributed to our understanding of the universe?

• The speed of light

• The presence of numerous worlds and organic molecules

• The age of the universe

• The existence of black holes

How long did it take for life to evolve from the earliest cells to multi-celled animals on Earth?

• 2.5 billion years

• 4 billion years

• 1 billion years

• 500 million years

Why might technological intelligence be considered rare?

• It evolved quickly on Earth

• It has appeared only once on Earth

• It is common in the universe

• It has appeared multiple times on Earth

What is a potential risk of making contact with alien civilizations?

• Encounters could be disastrous for less advanced civilizations

• Aliens could share technology

• Aliens might ignore us

• Aliens might be friendly

What historical pattern is observed in encounters between civilizations with differing levels of technology?

• They usually have no impact

• They often benefit the more advanced civilization

• They often go badly for the less advanced civilization

• They always result in peaceful coexistence