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Stories about: composition

Mysterious Major Changes in the Plutoid Eris A team of astronomers led by Stephen Tegler from the Northern Arizona University in Flagstaff were culling through pictures of the biggest dwarf planet beyond Neptune called Eris, when they came across a startling discovery. The small plutoid (as this type of planets is named) sported major changes in its surface com... 11 November 2008 06:25 GMT Where Did The Sun Come From? A new research is trying to find our Sun's family tree throughout the complex history of the galaxy, by studying its chemical composition. Open clusters could also provide clues concerning the Sun's genealogy.The team, led by Gayandhi De Silva, at the European Southern Observatory's Very Large Telesco... 22 May 2007 16:06 GMT