light-year light-year

Definition(s):

  • (n) the distance that light travels in a vacuum in 1 year; 5.88 trillion miles or 9.46 trillion kilometers

Usage(s):

  1. In addition, Hewish estimated that the fast-pulsing source is only 50 light-years away, compared with the 200-light-year distance he calculated for pulsar 1.
  2. Each light-year is about 6 trillion miles.
  3. But theory hints that doubling the radius to the billion-light-year radius of the 200-inch may show up the curvature.

News

  1. Scientists find blue planet in another solar system

    Posted by Scott T. Smith / CBS12 News LONDON (AP) â Astronomers have for the first time managed to determine the color of a planet outside our solar system, a blue gas giant 63 light-years away. Using the Hubble Space Telescope, an international team said the planet known as HD 189733B would look like a deep blue dot if viewed up close. ...
    on July 12, 2013     Source: WPEC CBS12 West Palm Beach

  2. Astronomers find blue planet outside solar system

    LONDON (AP) — Astronomers have for the first time managed to determine the color of a planet outside our solar system, a blue gas giant 63 light-years away.
    on July 12, 2013     Source: Associated Press via Yahoo! News

  3. Astronomers make landmark planet color discovery

    LONDON—Astronomers have for the first time managed to determine the color of a planet outside our solar system, a blue gas giant 63 light-years away.
    on July 12, 2013     Source: Pioneer Press

Quotes

  • "We find that density fluctuations on the 1 [billion] to 10 billion light-year scale are larger than density fluctuations on the 100 million light-year scale," Spergel said. "That is just what inflation theory predicts."
    on Mar 16, 2006 By: David Spergel Source: MSNBC

Word of the Day
cursory cursory
/ˈkɜr sə ri /