WebCurrently, in 2024, it was estimated that there are around 2 trillion galaxies in the observable Universe. Each galaxy is unique, ranging in size from 10,000 light-years to hundreds of … WebAlso on record as one of the largest structures in the universe. NGC 262 Halo Cloud. 1,300,000 ly (400,000 pc) [2] H I region. Spiral nebula surrounding NGC 262, which is one of the largest known galaxies . Leo Ring. 650,000 ly (200,000 pc) [3] HVC. Magellanic Stream.
Solar system Definition, Planets, Diagram, Videos, & Facts
WebApr 10, 2024 · Cassiopeia A is notable because it's our galaxy's youngest known supernova remnant. It's a mere 11,000 light-years away, and the light from the supernova first reached Earth 340 years ago. Web39 rows · The following is a list of notable galaxies.. There are about 51 galaxies in the Local Group (see list of nearest galaxies for a complete list), on the order of 100,000 in the … kate chastain what is she doing now
What Is a Galaxy? NASA Space Place – NASA Science …
WebJul 13, 2024 · A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems. A galaxy is held together by gravity. Our galaxy, the Milky Way, also has a … WebNov 26, 2016 · Scientists believe that the Milky Way contains up to 400 billion stars, and at least as many planets. The largest galaxy known, IC 1101, has over 100 trillion stars. … WebFeb 17, 2024 · Astronomers just found the largest galaxy ever discovered, and they have no idea how it got so big. At 16.3 million light-years wide, the Alcyoneus galaxy has a diameter 160 times wider than the ... kate chatfield twitter