NASA’s Spitzer and Hubble Space Telescopes have spotted what might be one of the most distant galaxies known, harkening back to a time when our universe was only about 650 million years old (our universe is billion years old). The galaxy, known.
Bright arcs are smeared around the heart of galaxy cluster Abell in this image taken by the NASA/ESA Hubble space telescope. The arcs are stretched images of distant galaxies distorted by the cluster’s enormous gravitational field.
Astrofísica y Física: Nueva medida de la constante de gravitación universal