“The observations at the center of the Milky Way have taught us that one, it’s really normal to have a black hole at the center of the galaxy. I mean, our galaxy is completely ordinary, garden-variety, nothing-special-about-us, so if we have one, presumably every galaxy harbors a ...
But mostly the middle of all those stars is the perfect place for black hole formation, with lots of dust and gas.阅读短文,回答问题。51. How many black holes may there be in the center of our galaxy?52. Have scientists already known about a supermassive black hole at the center of ...
Look for them at the center of the red diffraction spikes, appearing as an orange-white splotch. (Image credit: NASA, ESA, CSA. Image Processing: Joseph DePasquale (STScI)) NASA's James Webb Space Telescope (JWST) is known for capturing our universe with unprecedented precision and ...
A regular cluster is sphere shaped, symmetrical, and most dense in the middle. The greatest number of galaxies concentrated in the middle of the cluster. An irregular cluster might appear to be lopsided, asymmetrical, with a little concentration of galaxies in the center. ...
A“regular” cluster is sphere-shaped, symmetrical, and most dense in the middle, uh,with the greatest number of galaxies concentrated in the middle of the cluster. An “irregular” cluster might appear to be lopsided, asymmetrical, with a low concentration of galaxies in the center. ...
A galaxy pileup of 14 merging galaxies known as SPT2349 is currently the biggest known object in the universe. (Image credit: NRAO/AUI/NSF; S. Dagnello) Editor's Note: This story was updated at 5:10 p.m. E.T. There's nothing like staring up at the night sky to make you feel...
Your mission is to learn how to back up all of the voicemail messages you’ve been saving and resaving, so that you can keep them safe and sound without worrying about losing them. When we first started writing our books, I was amazed to hear how many people have old voicemails on ...
haswonthePritzkerPrize,theworld?shighestrecognitioninbuildingdesign. KéréisacitizenofbothBurkinaFasoandGermanyandlivesinBerlin.OnTuesdayhesaidhe wasthe“happiestmanonthisplanet”tobecomethe51strecipientofthefamousyearlyprize.Kéré isfamedforbuildingschools,healthcenters,housing,andotherpublicspacesacrossAfrica.His...
What is at the center of every planetary nebula? How long has Polaris been called the North Star? What is the bright star near the constellation Orion? What is a constellation? What is the Sombrero Galaxy? Which star is hotter: Antares or Polaris?
Stefano Mottola of the Institute of Planetary Research at the German Aerospace Center and the lead scientist for ROLIS said in a press briefing that the image was taken about 3 km (1.8 miles) from the surface of the comet. "The landing site is exactly in the middle," said Mottola. "And...