s*****t
发帖数: 1994 | 1 NGC 7293: The Helix Nebula
Credit: NASA, NOAO, ESA, Hubble Helix Nebula Team, M. Meixner (STScI), & T. A.
Rector (NRAO)
Explanation: Will our Sun look like this one day? The Helix Nebula is the closest example of
a planetary nebula created at the end of the life of a Sun-like star. The outer gasses of the star
expelled into space appear from our vantage point as if we are looking down a helix. The
remnant central stellar core, destined to become a white dwarf star, gl |
|
