That is only million years after the big bang. It is one of the first galaxies ever formed in the universe. Learning about the very first galaxies that formed after the big bang, like this one, helps us understand what the early universe was like. This picture shows hundreds of very old and distant galaxies. The oldest one found so far in GN-z11 shown in the close up image. The image is a bit blurry because this galaxy is so far away.
Oesch Yale University , G. Illingworth University of California, Santa Cruz. What Is a Light-Year? More to explore What Is a Galaxy? How Far Away Is the Moon? What Is a Nebula? If you liked this, you may like: What Is a Barycenter? Watch : Mining the Moon for rocket fuel. Queen guitarist Brian May and David Eicher launch new astronomy book.
Last chance to join our Costa Rica Star Party! Learn about the Moon in a great new book New book chronicles the space program.
Dave's Universe Year of Pluto. Groups Why Join? Astronomy Day. The Complete Star Atlas. The Andromeda Galaxy is speeding toward us, but it will take 4 billion years to get here. Meet the Milky Way's neighbor: the Andromeda Galaxy. Ask Astro : How many satellite galaxies does the Milky Way have? Warning: Objects in the cosmos are larger than they appear. What would happen if two stars collided? The Milky Way and Andromeda galaxies are approaching each other.
With current technology, how long would it take before we could directly measure the apparent increase in size of Andromeda? Cosmos: Origin and Fate of the Universe. Astronomy's Moon Globe. Galaxies by David Eicher. Edwin Hubble ended the controversy once and for all in when he identified Cepheid variable stars in Andromeda, and calculated that the galaxy was actually 1. Modern astronomers are continuing to calculate the distance to Andromeda.
In , astronomers calculated that Andromeda is 2. Another group used a different technique in to calculate that Andromeda was 2. And yet another technique in put it at 2. And so, the agreed distance of 2.
0コメント