Speed of light they appeared 13 billion years ago, when the universe was less than a billion years old. The fact that more distant objects appear to be younger, due to the finite speed of light, allows astronomers to infer the evolution of stars, of galaxies, and of the universe itself. Astronomical distances are sometimes expressed in light-years, especially in popular science publications and media. A light-year is the distance light travels in one year, around 9461 billion kilometres, 5879 billion miles, or 0.3066 parsecs. In round figures, a light year is nearly 10 trillion kilometres or nearly 6 trillion miles. Proxima Centauri,
Live-Evil (Miles Davis album) 1970 at Columbia Studio B, New York, NY)" 3. "Medley: Gemini/Double Image" (5:53)<br>"(Recorded February 6, 1970 at Columbia Studio B, New York, NY)" Side Two (25:12)<br> 1. "What I Say" (21:09)<br>"(Recorded December 19, 1970 at The Cellar Door, Washington, DC)" 2. "Nem Um Talvez" (4:03)<br>"(Recorded June 3, 1970 at Columbia Studio B, New York, NY)" Side Three (25:38)<br> 1. "Selim" (2:12)<br>"(Recorded June 3, 1970 at Columbia Studio B, New York, NY)" 2. "Funky Tonk" (23:26)<br>"(Recorded December 19, 1970 at The Cellar Door, Washington, DC)" Side Four (26:29)<br> 1. "Inamorata and Narration by Conrad Roberts" (26:29)<br>"(Recorded December 19, 1970 at The