单词:globular oxide inclusion
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MARY LOUISE KELLY, HOST: In her Oscar acceptance speech last night Frances McDormand, who had just been handed the statue for best actress, asked every female nominee in the room to stand up. (SOUNDBITE OF 90TH ANNUAL ACADEMY AWARDS) FRANCES MCDORMAN
We are traveling upwards away from our solar system, out of the spiral arms of the Milky Way. In front of us, lie vast clusters of stars, satellite groups that orbit the heart of our galaxy. These are globular clusters, over 150 have been discovered.
Measuring the brightnesses and colors of the stars in the globular cluster, we can figure out how old they are. Here is the remarkable thing: they are very old. Globular clusters, at least the stars in the globular clusters, in many cases, are almost
One of the puzzles about our galaxy is that we know that it's had stars forming continuously for about the last ten billion years. But at the rate/ it's eating up its gas now, it's forming new stars, it should burn out that gas soon, should run out o
But if you look carefully, stars aren't spread smoothly across the whole sky. They are gathered together into a band that loops around the sky which we call the Milky Way. That bright strip across the sky with its extraordinary abundance of stars and
Reporter: The IMF's executive board decided that the renminbi qualified for the SDR basket and existing criteria. Christine Lagarde, managing director of the IMF, made the announcement in Washington. Lagarde says the decision is an important mileston