Around 50 million years ago, a blue dwarf galaxy shot through the center of an enormous galaxy more than twice the size of ...

For decades, astronomers believed that planets couldn’t form in the early universe due to a lack of heavier elements like ...

In a study that was published in The Astrophysical Journal Letters, astronomers used Hubble to find eight observable ...

M3 was the first globular cluster Charles Messier discovered for his catalog. To see M4’s oldest white dwarfs, Hubble took ...

Here are the 7 amazing images of Nebula shared by NASA. A combined view of the Nebula, a well-known supernova remnant in the ...

The Hubble Space Telescope has provided the most detailed survey of the Andromeda galaxy, revealing new clues about its ...

In the century since Hubble's pioneering work, astronomers like me have learned that the universe is vast and contains trillions of galaxies. In 1610, astronomer Galileo Galilei used the newly ...

In the century since Hubble's pioneering work, astronomers like me have learned that the universe is vast and contains trillions of galaxies. In 1610, astronomer Galileo Galilei used the newly ...

His measurements marked the end of the Great Debate about the Milky Way’s size and the nature of the nebulae. Hubble wrote about his discovery to Harlow Shapley, who had argued that the Milky ...

The Andromeda galaxy helped Edwin Hubble settle a great debate in astronomy. Stocktrek Images via Getty Images ...