About 100 years after astronomer Edwin Hubble's discovered the "magnificent" spiral nebula, the Hubble Space Telescope and ...

The first attested mention of a nebula comes from the Persian astronomer Abd al-Rahman al-Sufi, who wrote in 964 about a ...

About 100 years after astronomer Edwin Hubble's discovered the "magnificent" spiral nebula ... A - Clusters bright blue stars embedded within the galaxy, background galaxies seen much farther ...