| 单词 | red giant star |
| 例句 | The Sun will become a red giant star, its visible surface so far from its interior that the gravity at its surface grows feeble, its atmosphere expanding into space in a kind of stellar gale. Cosmos 1980-01-01T00:00:00Z The isotopic signatures also suggested each zone was fed by material forged in different ancient and distant sources, such as supernovae and red giant stars. Earthlike planets should readily form around other stars, meteorites suggest 2023-01-25T05:00:00Z These two images show a ring of gas expelled by a red giant star about 30,000 years before the star exploded and was observed as Supernova 1987A. Astronomy 2016-10-13T00:00:00Z It has become a red giant star so enormous that, were it to replace our sun, its swollen atmosphere would envelop all the planets out to Jupiter. Ancient Stargazers Saw Betelgeuse Shine a Different Color 2022-08-18T04:00:00Z He hypothesized that the long-chain molecules were created in the atmospheres of carbon-rich red giant stars. Robert F. Curl Jr., Nobel Prize Winner in Chemistry, Dies at 88 2022-07-20T04:00:00Z Wendy Freedman, an astronomer at the University of Chicago, uses a certain class of red giant stars as her preferred standard candle. The James Webb Space Telescope Could Solve One of Cosmology’s Deepest Mysteries 2022-01-25T05:00:00Z In approximately five billion years, as the sun expands into a red giant star roughly the diameter of Earth’s orbit around it, our galaxy will collide with its nearest large neighbor, Andromeda. Galaxy Collisions Preview Milky Way’s Fate 2021-11-16T05:00:00Z As a red giant star gets a lot bigger, a point on the surface of the star is now farther from the center, and thus has less gravity. Astronomy 2016-10-13T00:00:00Z When a yellow dwarf burns off all the hydrogen in its core, it balloons into a red giant star. Astronomers observe a distant solar system that looks a lot like ours will after the sun explodes 2021-10-20T04:00:00Z Over the summer he tweaked the planetarium projector so that the sky rotated around Betelgeuse, the red giant star at Orion’s shoulder, rather than Polaris. What Animals See in the Stars, and What They Stand to Lose 2021-07-29T04:00:00Z It’s likely that the sun will expand into a red giant star and swallow the entire Earth long before then. Our moon — partner, protector, benefactor 2019-06-18T04:00:00Z When dying red giant stars throw off material, dust particles form; those particles are later destroyed by supernova blast waves, which move through space at more than 6,000 miles per second, according to NASA. Cosmic dust survives obliteration in massive red supernova, NASA shows in stunning visual 2019-02-11T05:00:00Z The first cluster contains mainly main-sequence stars, along with some red giant stars and a few white dwarfs. Astronomy 2016-10-13T00:00:00Z After removing the parallax-bearing stars, the researchers homed in on more than 100 red giant stars moving together in the constellation Antlia, they report in a paper posted to the preprint server arXiv this week. Large, strangely dim galaxy found lurking on far side of Milky Way 2018-11-13T05:00:00Z But in 2003, an infrared survey sensitive to the rare, red giant stars in the stream showed how it wraps around the Milky Way like a claw. Streams of stars reveal the galaxy’s violent history—and perhaps its unseen dark matter 2018-10-04T04:00:00Z The red giant star, which sits 36 light-years away, will appear to be eclipsed by the gibbous moon in the early morning hours for observers in northwestern North America. Blue Moon Eclipse and More Can't-Miss Sky Events in January 2018-01-01T05:00:00Z Marking the right shoulder of this iconic pattern is a rare red giant star that is an awesome example of impending stellar death. Halloween Sky Guide: 6 Eerie Sights to Haunt Your Night 2017-10-27T04:00:00Z The second cluster also contains mainly main-sequence stars, along with some red giant stars, and a few neutron stars—but no white dwarf stars. Astronomy 2016-10-13T00:00:00Z That eye is really the red giant star Aldebaran, which sits 67 light-years from Earth. Record Supermoon and 9 More Can't-Miss Sky Events in November 2016-11-01T04:00:00Z Bright, ruddy Mars will be high in the southern evening sky this week along with the ringed planet Saturn and the red giant star Antares. This Week’s Night Sky: See Stormy Mars and Faint Pluto This red giant star some 642 light-years distant belongs to the great constellation Orion, the hunter, which dominates the winter season in the Northern Hemisphere. This Week’s Night Sky: Catch the Moon Cruising by Jupiter Aldebaran is a dying red giant star about 66 light-years from Earth. This Week’s Night Sky: See Mercury Take Flight Shining with a distinct orange hue, Betelgeuse is a red giant star that is 700 times the size of our sun. This Week's Night Sky: Moon Hits a Bull’s Eye 2015-09-28T04:00:00Z This is the process at play in red giant stars, with more massive stars creating elements such as nitrogen, oxygen, neon, magnesium, silicon, sulphur, and iron-cobalt-and-nickel. The Only Three Heavy Elements In The Universe That Aren't Made In Stars 2015-07-01T04:00:00Z Originally, US 708 was a red giant star, and its partner was a white dwarf. Fastest Star in the Galaxy Got an Unusual Start 2015-03-05T05:00:00Z In fact, these nebulae are the bright, energised gas clouds created when a red giant star dies and evolves into a white dwarf. Doomed stars found at nebula's heart 2015-02-09T05:00:00Z The nutty thing Levesque and three colleagues discovered looks like an ordinary red giant star, similar in appearance to Betelgeuse, which marks one of Orion’s shoulders. A Giant Star With a Chewy Chocolate Center—Sort Of 2014-06-10T04:00:00Z First, it found that red giant stars oscillated in a way that theorists hadn’t expected, giving astronomers new insight into the structure and evolution of the aging stars. European Exoplanet-Hunting Space Telescope Nears Its End 2012-11-19T16:15:00.287Z An intriguing spiral structure surrounding a pulsing red giant star may be offering a preview of how the sun will behave at the end of its life. Strange Star Spiral Offers Clues to Sun's Fate 2012-10-11T15:15:01.053Z The researchers suggest the companion was a red giant star, much like what our sun is expected to become in about 5 billion years. Red Giants and White Dwarfs Make Explosive Stellar Pairings 2012-08-23T21:15:00.213Z The second piece of evidence discovered by the astronomers is the highly elliptical orbit of a newly discovered planet around the red giant star. Star is caught devouring planet 2012-08-21T15:55:38Z Incidentally, that's the same fate that awaits Mercury and Venus, the two innermost planets in our own solar system, when the sun grows into a bloated red giant star some 5 billion years from now. Brown Dwarfs Being Gobbled Up by Parent Stars 2012-06-14T18:19:02Z But the question as to how the red giant stars were formed has received less satisfactory and precise answers. The Outline of Science, Vol. 1 (of 4) A Plain Story Simply Told This red giant star," he read, "was studied in the usual fashion. Star Surgeon "The highly elongated orbit of the massive planet we discovered around this lithium-polluted red giant star is exactly the kind of evidence that would point to the star's recent destruction of its now-missing planet." Star is caught devouring planet 2012-08-21T15:55:38Z |
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