Final frontier.This January, NASA NASA: see National Aeronautics and Space Administration. NASA in full National Aeronautics and Space Administration Independent U.S. scientists plan to launch a revolutionary space probe. New Horizons is set to become the first spacecraft to pass by Pluto, the only planet in the solar system solar system, the sun and the surrounding planets, natural satellites, dwarf planets, asteroids, meteoroids, and comets that are bound by its gravity. The sun is by far the most massive part of the solar system, containing almost 99.9% of the system's total mass. yet to be studied close-up. Because Pluto is the farthest planet from Earth, astronomers Famous astronomers and astrophysicists include: Directory: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A
New Horizons, a 450-kilogram (1,000-pound) probe, will map the surfaces of Pluto and its moons and study their compositions. These celestial ce·les·tial adj. 1. Of or relating to the sky or the heavens: Planets are celestial bodies. 2. Of or relating to heaven; divine: celestial beings. 3. bodies--made from the icy material left over when the other planets formed--may hold clues as to how the solar system developed. |
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