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Cluster and double star uncover more on bright aurorae
09-11-2007 · EurekAlert!Cluster data has helped provide scientists with a new view of magnetospheric processes, challenging existing theories about magnetic substorms that cause aurorae and perturbations in GPS signals.
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Keywords: cluster, double, star, uncover, bright, aurorae
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- Supernova impostor goes supernova
04-04-2007 · EurekAlert!
In a galaxy far, far away, a massive star suffered a nasty double whammy. On Oct. 20, 2004, Japanese amateur astronomer Koichi Itagaki saw the star let loose an outburst so bright that it was initially mistaken for a supernova. The star survived, but for only two years. On Oct. 11, 2006, professional and amateur astronomers witnessed the star actually blowing itself to smithereens as Supernova 2006jc.
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- NASA THEMIS mission adds five spacecraft to the Sun-Earth flotilla
02-16-2007 · European Space Agency (ESA)
Tonight NASA plans to launch its five THEMIS scientific satellites onboard a Delta-2 rocket from Cape Canaveral, Florida USA, to join the spacefleet of Sun-Earth connection explorers – four from the ESA Cluster mission and two from the CNSA/ESA Double Star mission.
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- The Space Station as a blazing star
10-26-2006 · European Space Agency (ESA)
Visibility of the International Space Station (ISS) is currently particularly good in the evening sky. Until November, stargazers all over Europe can observe the ISS as a very bright, fast-moving point of light in the sky.
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- Extreme star cluster in new Hubble images
10-02-2007 · European Space Agency (ESA)
The gigantic nebula NGC 3603 hosts one of the most prominent, massive, young clusters in the Milky Way. Hubble has been observing this prime location for star formation studies.
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- Extreme star cluster bursts into life in new Hubble image
10-02-2007 · EurekAlert!
The NASA/ESA Hubble Space Telescope has captured a spectacular image of NGC 3603, a giant nebula hosting one of the most prominent massive young clusters in the Milky Way, thus supplying a prime template for star formation studies.
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- Galaxy cluster takes it to the extreme
05-30-2007 · EurekAlert!
Evidence for an awesome upheaval in a massive galaxy cluster was discovered in an image made by NASA’s Chandra X-ray Observatory. The origin of a bright arc of ferociously hot gas extending over two million light years requires one of the most energetic events ever detected.
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- Hubble sees multiple star generations in a globular cluster
05-02-2007 · European Space Agency (ESA)
Hubble's observations of the massive globular cluster NGC 2808 provide evidence for three generations of stars that formed early in its life. This is a major upset for conventional theories that propose a single period of star birth.
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- Double explosion heralds the death of a very massive star
06-13-2007 · EurekAlert!
A unique discovery of two celestial explosions at exactly the same position in the sky has led astronomers to suggest they have witnessed the death of one of the most massive stars that can exist. A global collaboration of astronomers, led by Queen's University Belfast teamed up with Japanese supernova hunter Koichi Itagaki to report an amazing new discovery in Nature this week.
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- The topsy-turvy galaxy
11-25-2006 · EurekAlert!
ESO's VLT has taken an image of the starburst galaxy NGC 1313, whose captivating appearance belies its inner turmoil. The dense clustering of bright stars and gas in its arms, a sign of an ongoing boom of star births, shows a mere glimpse of the rough times it has seen. Probing ever deeper into the heart of the galaxy, astronomers have revealed many enigmas that continue to defy our understanding.
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- Hubble finds multiple stellar 'baby booms' in a globular cluster
05-02-2007 · EurekAlert!
Analysis of Hubble observations of the massive globular cluster NGC 2808 provides evidence that it has three generations of stars that formed early in the cluster's life. This is a major upset for conventional theories as astronomers have long thought that globular star clusters had a single "baby boom" of stars early in their lives and then settled down into a long, quiet middle age.
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