https://padlet.com/ortizc61/mq6g1zfd26h3oj7q en-us 2022-11-07 16:28:40 UTC 2022-11-07 17:09:11 UTC hello@padlet.com ortizc61 https://padlet.com/ortizc61/mq6g1zfd26h3oj7q/wish/2373480506 Using NASA's Chandra X-ray Observatory, an orbiting spacecraft that houses the most powerful X-ray telescope in existence, the astronomers discovered the disk while analyzing data collected from NGC 1700, a young elliptical galaxy about 160 million light years from Earth.]]> 2022-11-07 17:03:34 UTC https://padlet.com/ortizc61/mq6g1zfd26h3oj7q/wish/2373480506 ortizc61 https://padlet.com/ortizc61/mq6g1zfd26h3oj7q/wish/2373480741 Elliptical galaxies have a broader range in size than other types of galaxies. The smallest are dwarf elliptical galaxies, which can be less than 10 percent of the size of the Milky Way. But ellipticals can also stretch to more than a million light-years across, and contain more than ten trillion stars.]]> 2022-11-07 17:03:42 UTC https://padlet.com/ortizc61/mq6g1zfd26h3oj7q/wish/2373480741 ortizc61 https://padlet.com/ortizc61/mq6g1zfd26h3oj7q/wish/2373485095 Using this telescope, Rosse saw and cataloged a large number of nebulae, including a number that would later be recognized as galaxies. Lord Rosse performed astronomical studies and discovered the spiral nature of some nebulae, today known to be spiral galaxies.]]> 2022-11-07 17:06:00 UTC https://padlet.com/ortizc61/mq6g1zfd26h3oj7q/wish/2373485095 ortizc61 https://padlet.com/ortizc61/mq6g1zfd26h3oj7q/wish/2373486113 Most spiral galaxies contain a central bulge surrounded by a flat, rotating disk of stars. The bulge in the center is made up of older, dimmer stars, and is thought to contain a supermassive black hole. Approximately two-thirds of spiral galaxies also contain a bar structure through their center, as does the Milky Way.]]> 2022-11-07 17:06:34 UTC https://padlet.com/ortizc61/mq6g1zfd26h3oj7q/wish/2373486113 ortizc61 https://padlet.com/ortizc61/mq6g1zfd26h3oj7q/wish/2373489299 Irregular galaxies often form when one galaxy collides with another. Here, a smaller galaxy passed through the middle of a large spiral galaxy, forming this irregular Cartwheel Galaxy. Hubble recognized these two types of irregular galaxies, Irr I and Irr II.]]> 2022-11-07 17:08:18 UTC https://padlet.com/ortizc61/mq6g1zfd26h3oj7q/wish/2373489299 ortizc61 https://padlet.com/ortizc61/mq6g1zfd26h3oj7q/wish/2373490724 Irregular galaxies have no particular shape. They are among the smallest galaxies and are full of gas and dust. Having a lot of gas and dust means that these galaxies have a lot of star formation going on within them. This can make them very bright]]> 2022-11-07 17:09:07 UTC https://padlet.com/ortizc61/mq6g1zfd26h3oj7q/wish/2373490724