Asteroid deflection strategies — are methods by which near Earth objects could be diverted, preventing potentially catastrophic impact events. A sufficiently large impact would cause massive tsunamis and/or, by placing large quantities of dust into the stratosphere blocking… … Wikipedia
Asteroid — For the arcade video game, see Asteroids (video game). For other uses, see Asteroid (disambiguation). A composite image, to scale, of the asteroids that have been imaged at high resolution. As of 2011 they are, from largest to smallest: 4 Vesta,… … Wikipedia
Asteroid belt — For the album by Velvet Chain, see Asteroid Belt (album). The asteroid belt (shown in white) is located between the orbits of Mars and Jupiter. The asteroid belt is the region of the Solar System located roughly between the orbits of the planets… … Wikipedia
Asteroid family — An asteroid family is a population of asteroids that share similar orbital elements, such as semimajor axis, eccentricity, and orbital inclination. The members of the families are thought to be fragments of past asteroid collisions. General… … Wikipedia
asteroid — asteroidal, adj. /as teuh royd /, n. 1. Also called minor planet. Astron. any of the thousands of small bodies of from 480 miles (775 km) to less than one mile (1.6 km) in diameter that revolve about the sun in orbits lying mostly between those… … Universalium
Asteroid-impact avoidance — Planetary defense redirects here. For defending against alien invasion in fiction, see alien invasion. Artist s impression of a major impact event. The collision between Earth and an asteroid a few kilometres in diameter releases as much energy… … Wikipedia
Harvard College Observatory — The Harvard College Observatory (or HCO) is an institution managing a complex of buildings and multiple instruments used for astronomical research by the Department of Astronomy of Harvard. It is located in Cambridge, Massachusetts, USA, and was… … Wikipedia
Harvard-Smithsonian Center for Astrophysics — The Harvard Smithsonian Center for Astrophysics (CfA) is arguably the largest and most diverse astrophysical institution in the world, where scientists carry out a broad program of research in astronomy, astrophysics, earth and space sciences,… … Wikipedia
Harvard-Observatorium — Das Harvard College Observatorium um das Jahr 1900. Das Harvard College Observatorium (Harvard College Observatory HCO) ist das astronomische Observatorium des Fachbereiches für Astronomie der Harvard Universität. Es befindet sich in Cambridge,… … Deutsch Wikipedia
Harvard College Observatory — Das Harvard College Observatorium um das Jahr 1900. Das Harvard College Observatorium (Harvard College Observatory HCO) ist das astronomische Observatorium des Fachbereiches für Astronomie der Harvard Universität. Es befindet sich in Cambridge,… … Deutsch Wikipedia
