The Restless Universe |
Common terms and phrases
accretion disc American Andromeda Galaxy asteroid astronauts atmosphere atoms Big Bang black hole bright carbon dioxide centre Chapter collapse comet core cosmic craters crust dark distance dust Earth eclipse electrons elliptical energy explosion Galaxy's gas clouds gases giant gravity helium Hubble huge hydrogen interstellar Jupiter Jupiter's kilometres layer living cells look magnetic field Mars Mars's martian matter measure Mercury meteorites metres miles Milky million light million years ago molecules Moon Moon's naked singularity Nebula neutrinos neutron star nuclei Observatory ocean orbit outer oxygen particles photographs planet planetesimals plate Pluto predict probes produce pulsars quasars radiation radio astronomers radio galaxies radio waves redshift region rings rocks rotation satellites Saturn scientists Seyfert Seyfert galaxies singularity solar system space spacecraft spaceprobes spectrum speed spin spiral arms star's Sun's supernova surface surrounding temperature theory there's tiny Universe Uranus Venus volcanoes Voyager wavelengths white dwarf X-ray