IRA FLATOW
原来NASA的哈勃望远镜兢兢业业在太空服役了快30年了,马上就是它的30岁生日,浪漫鬼才NASA为它推出了#What-did-Hubble-See-on-Your-Birthday#的活动庆生。 哈勃卫星(也称哈勃天文望远镜)于1990年4月24日在美国肯尼迪航天中心由“发现者”号航天飞机成功发射。 30年来,它在距离地面约575公里...
Star clusters are large gravitationally bound groups of stars that are one of the best tools astronomers have to study stellar evolution.
Neutron stars are created when massive stars reach the ends of their lives and are composed of the densest matter in the known universe.
Want more information on stars? Here’sHubblesite’s News Releases about Stars, and more information fromNASA’s imagine the Universe. We have recorded several episodes of Astronomy Cast about stars. Here are two that you might find helpful:Episode 12: Where Do Baby Stars Come From, andEpisod...
Stars with a mass of more than 25 times that of the sun can leave a black hole behind after exploding. Black holes are formed when the core after the supernova explosion has a solar mass three times that of the sun. Credit: The Tycho supernova remnant. X-ray: NASA/CXC/Rutgers/K.Eri...
Neutron star. Credit: NASA Thrilled physicists and astronomersannounced Monday the first-ever observation of the merger of two neutron stars, one of the most spectacularly violent phenomena in the Universe. But what are they? We asked Patrick Sutton, head of Cardiff University's gravitational physic...
STARSSpace-Based Telemetry and Range Safety(NASA) STARSSpecialized Treatment and Recovery Services STARSStudents Teaching and Reaching Students STARSSpill Technology and Remediation Series(NYS DEC petroleum-contaminated soil guidance policy) STARSService Technology Alliance Resources(government contract) ...
All stars are very, very far away, except for the Sun. The rest are outside of our solar system. The closest one to us is called Proxima Centauri, and it lies 4.2 light-years away. A Hubble Space Telescope view of Proxima Centauri. NASA/ESA/STScI Most stargazers who have observed ...
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