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Yellow Star Thistle, Non-native Plants of Sequoia and Kings Canyon National Parks (541 words) |
 | An estimated 1,400,000 hectares (570,000 acres) were infested with yellow star thistle in the western states by the mid 1980's and this highly aggressive plant is a real threat to the foothill grasslands in the parks. |
| Yellow star thistle is native to southern Europe. |
| Yellow star thistle is abundant along Highway 198 west of the town of Lemon Cove. |
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Star - definition of Star - Labor Law Talk Dictionary (2202 words) |
| Stellar astronomy is the study of stars and the phenomena exhibited by the various forms/developmental stages of stars. |
| As learned by star formation astronomers, stars are born in molecular clouds, large regions of slightly higher density of matter (though still less dense than the inside of an earthly vacuum chamber), and form by gravitational instability inside those clouds triggered by shockwaves from supernovae. |
| Most of the matter in a star is blown away in the explosion (forming nebulae such as the Crab Nebula) but what remains will collapse into a neutron star (a pulsar or X-ray burster) or, in the case of the largest stars, a fl hole. |
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