In the years since astronomers discovered the first exoplanet--a planet that orbits a star outside the solar system--more than 4,000 have been observed. Usually, their presence is given away by the slight effects they have on their parent stars, which vastly outshine them. For a decade and half, scientists have been trying to image exoplanets directly, but the Earth's atmosphere presents a major impediment when they attempt to leverage large ground-based telescopes.
In the years since astronomers discovered the first exoplanet--a planet that orbits a star outside the solar system--more than 4,000 have been observed. Usually, their presence is given away by the slight effects they have on their parent stars, which vastly outshine them. For a decade and half, scientists have been trying to image exoplanets directly, but the Earth's atmosphere presents a major impediment when they attempt to leverage large ground-based telescopes.
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