标签: 超新星

第谷超新星:恒星的死亡

In 1572, Danish astronomer Tycho Brahe was among those who noticed a new bright object in the constellation Cassiopeia. Adding fuel to the intellectual fire that Copernicus started, Tycho showed this “new star” was far beyond the Moon, and that it was possible for the universe beyond the Sun and planets to change. Astronomers now know that Tycho’s new star w...

超新星大炮驱逐脉冲星J0002

2019 August 13 Supernova Cannon Expels Pulsar J0002 Image Credit: F. Schinzel et al. (NRAO, NSF), Canadian Galactic Plane Survey (DRAO), NASA (IRAS); Composition: Jayanne English (U. Manitoba) Explanation: What could shoot out a neutron star like a cannon ball? A supernova. About 10,000 years ago, the supernova that created the nebular remnant CTB 1 not only...

暗宇宙传说

2019 August 4 Rumors of a Dark Universe Image Credit: High-Z Supernova Search Team, HST, NASA Explanation: Twenty-one years ago results were first presented indicating that most of the energy in our universe is not in stars or galaxies but is tied to space itself. In the language of cosmologists, a large cosmological constant — dark energy — was ...