Hide Caption 5 of 193Photos: Wonders of the universe When a star's mass is ejected during a supernova, it expands quickly. Hide Caption 28 of 193Photos: Wonders of the universe The red supergiant star Betelgeuse, in the constellation of Orion, has been undergoing unprecedented dimming. Hide Caption 33 of 193Photos: Wonders of the universe After stars die, they expel their particles out into space, which form new stars in turn. Hide Caption 147 of 193Photos: Wonders of the universe NASA's Hubble Space Telescope, using infrared technology, reveals the density of stars in the Milky Way. Hide Caption 185 of 193Photos: Wonders of the universe This is the largest Hubble Space Telescope image ever assembled.

Source: CNN August 14, 2020 08:37 UTC