In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...

From the iconic 'one small step', to the spectacular 'Earthrise', check out these 10 stunning Moon photos shared by NASA.

Around 13.7 billion years ago, something collapsed. It fell outward into the nothingness that stretched in every direction, ...

Definition: Hubble Space Telescope (HST) is a space telescope named after renowned astronomer Edwin Hubble. It was launched in 1990 and is one of the great observatories of NASA. Description: Hubble ...

Elon Musk's internet satellites have been a game changer for people in rural areas, but scientists are alarmed that plans to ...

Fluffy strands of cosmic gas and dust illuminated by bright young stars form a beautiful cloudscape in a neighboring nebula.

A new image from the Hubble Space Telescope shows a cosmic cloudscape, with clouds of dust and gas swirling in beautiful colors.

Since Hubble’s launch, astronomers have discovered over 1 trillion galaxies, but Andromeda stands out as the closest and most ...

Hubble Space Telescope can "only see the universe in shades of grey," according to NASA's Goddard Space Flight Center. Learn how the imagery is processed into amazing color views of the cosmos. Credit ...

Despite its whimsical name, Quipu (pronounced “kee-poo”) is the largest confirmed superstructure in the universe to date in ...