space news from around the webin association with SpaceNews

Stars evidence of new state of matter
Posted: Thu, Apr 11, 2002, 10:54 AM ET (1454 GMT)
Chandra image of 3C58 quark star Astronomers using the Chandra X-Ray Observatory have discovered two stars that may be made of a new state of matter. The astronomers found one neutron star, 3C58, which was colder than expected had it been made of pure neutrons. Another star, RX J1856.5-3754, turned out to be only 11 km across, smaller than expected had it been composed of neutrons. Astronomers led by Jeremy Drake of the Harvard-Smithsonian Center for Astrophysics believe that the stars may be made not of neutrons but of quarks, the subatomic particles that combine to form neutrons and protons but are not otherwise found in nature. Astronomers acknowledged that one of the stars, RX J1856.5-3754, may in fact be an ordinary neutron star with a hot spot, but such a star would be expected to pulsate, and no such pulsations have yet to be observed.
<<previous article   next article>>
news in brief
Falcon 9 launches Dragon to ISS
Posted: Sat, Dec 16 11:28 AM ET (1628 GMT)

Soyuz returns three ISS crewmembers to Earth
Posted: Sat, Dec 16 11:19 AM ET (1619 GMT)

Ariane 5 launches four Galileo satellites
Posted: Sat, Dec 16 11:14 AM ET (1614 GMT)

news links
Sunday, December 17
Space Florida, Made In Space Forge Financing Agreement
Space Florida — 10:01 am ET (1501 GMT)

about   ·   ·   mailing list