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Lêer:Alone in Space - Astronomers Find New Kind of Planet.jpg

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Beskrywing
English: This artist's conception illustrates a Jupiter-like planet alone in the dark of space, floating freely without a parent star. Astronomers recently uncovered evidence for 10 such lone worlds, thought to have been "booted," or ejected, from developing solar systems.

The planet survey, called the Microlensing Observations in Astrophysics (MOA), scanned the central bulge of our Milky Way galaxy from 2006 to 2007. It used a 5.9-foot (1.8-meter) telescope at Mount John University Observatory in New Zealand, and a technique called gravitational microlensing. In this method, a planet-sized body is identified indirectly as it just happens to pass in front of a more distant star, causing the star to brighten. The effect is like a cosmic funhouse mirror, or magnifying lens light from the background star is warped and amplified, becoming brighter.

Based on these results, astronomers estimate that free-floating worlds are more common than stars in our Milky Way galaxy, and perhaps other galaxies too.
Datum
Bron http://www.nasa.gov/topics/universe/features/pia14093.html
Outeur NASA/JPL-Caltech
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Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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huidig07:29, 29 Augustus 2015Duimnaelskets vir weergawe vanaf 07:29, 29 Augustus 20153 186 × 2 390 (1,18 MG)Alamdanishnepalidanish
18:31, 6 Augustus 2011Duimnaelskets vir weergawe vanaf 18:31, 6 Augustus 20113 186 × 2 390 (1,18 MG)Apollofox{{Information |Description ={{en|1=This artist's conception illustrates a Jupiter-like planet alone in the dark of space, floating freely without a parent star. Astronomers recently uncovered evidence for 10 such lone worlds, thought to have been "boot

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