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XMM-Newton Closes In On Space's Exotic Matter

Neutron star (blue) draws nuclear fuel from its companion star (yellow)

 Paris (ESA) Nov 12, 2002
 A fraction of a second after the Big Bang, all the primordial soup of matter in the Universe was 'broken' into its most fundamental constituents. It was thought to have disappeared forever. However scientists strongly suspect that the exotic soup of dissolved matter can still be found in today's Universe, in the core of certain very dense objects called neutron stars.

With ESA's space telescope XMM-Newton, they are now closer to test this idea. For the first time, XMM-Newton has been able to measure the influence of the gravitational field of a neutron star on the light it emits. This measurement provides much better insight into these objects.

Neutron stars are among the densest objects in the Universe.
 They pack the mass of the sun inside a sphere 10 kilometres across. A sugar cube-sized piece of neutron star weighs over a billion tonnes. Neutron stars are the remnants of exploding stars up to eight times more massive than our Sun. They end their life in a supernovae explosion and then collapse under their own gravity. Their interior may therefore contain a very exotic form of matter.

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TECH SPACE
DARE for Planetary Exploration
 Altadena - Nov 12, 2002
 Balloons outfitted with innovative steering devices and robot probes could be the future of planetary exploration. Dr. Alexey Pankine, a fellow at the NASA Institute for Advanced Concepts (NIAC), presented an analysis of balloon applications for planetary science at the World Space Congress in Houston, Texas last month. His study, entitled Directed Aerial Robot Explorers or DARE, is funded by NIAC.






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