Title:
The Antennae galaxies, located about 62 million light-years from Earth, are shown in this composite image. The collision, which began more than 100 million years ago and is still occurring, has triggered the formation of millions of stars in clouds of dusts and gas in the galaxies. Hubble and Spitzer.
Caption:
The Antennae galaxies, located about 62 million light-years from Earth, are shown in this composite image. The collision, which began more than 100 million years ago and is still occurring, has triggered the formation of millions of stars in clouds of dusts and gas in the galaxies. Hubble and Spitzer. (Photo by: Universal History Archive/UIG via Getty Images)