NASA

共 2 篇文章。

NASA宣布发现太阳系第10颗大行星

The Universe

From: NASA

A planet larger than Pluto has been discovered in the outlying regions of the solar system.

The planet was discovered using the Samuel Oschin Telescope at Palomar Observatory near San Diego, Calif. The discovery was announced today by planetary scientist Dr. Mike Brown of the California Institute of Technology in Pasadena, Calif., whose research is partly funded by NASA.

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The Witch's Broom [NASA]

The Universe

The Witch’s Broom

The Witch’s Broom

Ten thousand years ago, before the dawn of recorded human history, a new light must suddenly have appeared in the night sky and faded after a few weeks. Today we know this light was an exploding star and record the colorful expanding cloud as the Veil Nebula. Pictured above is the west end of the Veil Nebula known technically as NGC 6960, but less formally as the Witch’s Broom Nebula. The rampaging gas gains its colors by impacting and exciting existing nearby gas.

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