Scientists have found that a huge star located about 12,000 light-years from Earth is even larger than initially expected, at 1,300 times the diameter of the sun.
Stephenson 2-18 is a red supergiant star of the spectral type M6. It is one of thelargest starsever discovered, with a radius of 2,150 solar radii. It is also one of the most luminous stars in the Milky Way and one of the most luminous red supergiants known. With an effective tempe...
Weizmann and California scientists observe largest exploding star ever seenJUDY SIEGEL
Many scientists think that there are super-massive black holes at the center of galaxies."This special black hole, which is about 30 billion times the mass of our sun, is one of the biggest ever discovered.* It is an exciting discovery," said James Nightingale, a scientist at Durham ...
阅读理解The largest diamond ever found in North Americ a has been unearthed in Canada. The 552-carat yellow diamond was found at the Diavik Diamond Mine, northeast of Yellowknife, in October and measured about the size of a chicken-egg.“This incredible discovery shows what is truly spectacular...
Seven Earth-sized planets have been discoveredaround a star that’s roughy 39 light-years from our solar system, by a team behind NASA’s Spitzer Space Telescope. Three of these exoplanets are believed to orbit the star’s “Goldilocks zone,” the single largest haul of potentially habitable ...
The second largest stone, the “Star of Africa II” or “Cullinan II,” is 317 carats. Both of these stones, as well as the “Cullinan III,” are on display in the Tower of London with Britain’s other crown jewels; the Cullinan I is mounted in the British Sovereign’s Royal ...
Astronomers have discovered the largest cosmic explosion ever observed, AT2021lwx, which is believed to have been caused by a supermassiveblack holeviolently disrupting a massive gas cloud. This explosion has released far more energy than any previous event due to its extended duration. ...
A spooky new image shows a web of bright galaxies aligned in the largest structures ever discovered in the universe. Scientists working with a telescope in Chile discovered the alignment by studying 93 quasars — objects that shine very brightly and are powered by supermassive black holes — from...
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