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Are We Alone The Search for Earth-like Planets and Alien Life

Exploring the cosmos for signs of life beyond Earth

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Are We Alone
The Search for Earth-like Planets and Alien Life
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Are We Alone
The Search for Earth-like Planets and Alien Life
Are We Alone The Search for Earth-like Planets and Alien Life1 / 12
Is Earth the only planet with life
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Wide-shot of the universe with stars and galaxies, subtle glowing statistic cards overlay
Wide-shot of the universe with stars and galaxies, subtle glowing statistic cards overlay
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    2 trillion galaxies in the observable universe
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    100-400 billion stars in the Milky Way alone
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    Over 5,000 confirmed exoplanets and counting
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How big is the universe
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    Earth: 1 planet in a solar system of 8
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    Milky Way: 100-400 billion stars
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    Observable universe: Hundreds of billions of galaxies
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What are exoplanets
Planets orbiting stars outside our solar system
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    Detected via transit method (dimming star light)
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    Radial velocity measures star wobbles
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    Direct imaging captures planet light
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    NASA's Kepler telescope: 2,600+ discoveries
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    TESS: 5,000+ candidates under review
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    James Webb: Analyzes atmospheres for biosignatures
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Earth-like planets already found
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Comparison table with illustrations: Kepler-452b, Proxima Centauri b, TRAPPIST-1e, TOI-700 d, Kepler-186f. Columns: Planet, Distance, Earth Size, Habitable Zone, Interesting Fact
Comparison table with illustrations: Kepler-452b, Proxima Centauri b, TRAPPIST-1e, TOI-700 d, Kepler-186f. Columns: Planet, Distance, Earth Size, Habitable Zone, Interesting Fact
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Can humans live there
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    Water: Essential for all known life
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    Atmosphere: Protects from radiation
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    Temperature: Must allow liquid water
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    Magnetic field: Shields from solar winds
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    Oxygen: Supports complex life
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    Travel distance: Proxima Centauri is 4.24 light-years away
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    Radiation: High levels on many exoplanets
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    Unknown environment: Unpredictable conditions
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What could aliens really look like
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Collage: Microscopic organisms, deep-sea vent bacteria, Europa’s subsurface ocean concept, Mars microbial life illustration
Collage: Microscopic organisms, deep-sea vent bacteria, Europa’s subsurface ocean concept, Mars microbial life illustration
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    Microbial life: Most likely first discovery
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    Extremophiles: Thrive in harsh Earth environments
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    Simple organisms: Could exist on Europa or Mars
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How scientists search for alien life
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    James Webb: Studies exoplanet atmospheres
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    Radio telescopes: Listen for technosignatures
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    SETI: Scans for intelligent signals
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    Mars rovers: Search for past or present life
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Have we found another Earth
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Dashboard with statistic cards: Earth Clone (❌ Not confirmed), Alien Life (❌ Not confirmed), Potential Earth-like Planets (✔ Thousands), Exoplanets Confirmed (✔ 5000+), Habitable Candidates (✔ Hundreds)
Dashboard with statistic cards: Earth Clone (❌ Not confirmed), Alien Life (❌ Not confirmed), Potential Earth-like Planets (✔ Thousands), Exoplanets Confirmed (✔ 5000+), Habitable Candidates (✔ Hundreds)
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Future missions timeline
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    James Webb: Operational, studying exoplanet atmospheres
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    Roman Space Telescope: Launching 2025, wider field of view
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    ESA PLATO: 2026, focuses on Earth-like planets
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    Future missions: Expanding search capabilities
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Fun facts
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Colorful cards with cosmic background: Card 1 - Message to Proxima Centauri (4+ years), Card 2 - Ancient starlight, Card 3 - Venus day vs year, Card 4 - Billions of Earth-sized planets
Colorful cards with cosmic background: Card 1 - Message to Proxima Centauri (4+ years), Card 2 - Ancient starlight, Card 3 - Venus day vs year, Card 4 - Billions of Earth-sized planets
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The universe is under no obligation to make sense to us
If life exists somewhere else... will we be the generation to discover it

Thank you • Questions

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