increases the metallicities of the parent stars. There is cer- tainly evidence based on abundance analyses in our solar system that impacts from bodies in the asteroid belt or outer solar system have changed the surface abundances of the earth and other planets (e.g., Morbidelli et al. 2000...
Solar system, assemblage consisting of the Sun and those bodies orbiting it: 8 planets with more than 400 known planetary satellites; many asteroids, some with their own satellites; comets and other icy bodies; and vast reaches of highly tenuous gas and
Richard Christopher Carrington was an English astronomer who, by observing the motions of sunspots, discovered the equatorial acceleration of the Sun—i.e., that it rotates faster at the equator than near the poles. He also discovered the movement of sun