Exoplanet Explained in 60 Seconds #Shorts

An exoplanet is any planet orbiting a star beyond our own Sun. Show the transit method: as a planet passes in front of its star, it blocks a tiny fraction of light (‹1%), producing a characteristic dip in the light curve. Visualize the habitable zone where liquid water can exist, rocky Earth-like planets vs. gas giants, Kepler's discoveries, and Proxima Centauri b at just 4.24 light-years.

Subject: Astrophysics

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1. An exoplanet is any planet that orbits a star beyond our own Sun. For most of human history, we had no idea they existed.
2. Today, the most productive way to find them is the transit method: watch a star carefully, and look for tiny dips in its brightness.
3. When a planet passes in front of its star from our viewpoint, it blocks a fraction of the light — sometimes less than 1 percent. That tiny dip is the signature of a world.
4. Around every star is a sweet spot — the habitable zone — where temperatures allow liquid water to exist on a rocky planet's surface.
5. Small rocky planets in this zone are the holy grail — potential Earth-like worlds that could host life as we know it.
6. Since the first confirmed exoplanet around a Sun-like star was found in 1995, astronomers have discovered more than 5,500 of them.
7. Most were found by NASA's Kepler space telescope, which stared at 150,000 stars for years, watching for those telltale dips in brightness.
8. Exoplanets come in every variety: gas giants bigger than Jupiter, mini-Neptunes, super-Earths, and lava worlds orbiting closer than Mercury.
9. The nearest known exoplanet is Proxima Centauri b — only 4.24 light-years away. And statistically, every star in the night sky likely hosts at least one world of its own.

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