NASA's James Webb Space Telescope has spotted a young galaxy dating to the early universe - called Firefly Sparkle because its gleaming star clusters resemble the bioluminescent bugs - in a discovery that is giving astronomers a peek at what our Milky Way may have looked like in its infancy.

Kartheik Iyer, a NASA Hubble Fellow at Columbia University in New York, was the co-author on the paper on Firefly Sparkle. It was discovered through an image from NASA’s James Webb Space Telescope.

For the first time, the NASA/ESA/CSA James Webb Space Telescope has detected and "weighed" a galaxy that not only existed about 600 million years after the Big Bang, but also has a mass that is similar to what our Milky Way galaxy's mass might have been at the same stage of development.

Nicknamed the Firefly Sparkle, this galaxy existed just 600 million years after the Big Bang and gleams with 10 distinct star clusters.

Why is your discovery of the Firefly Sparkle galaxy important? Telescopes like JWST are essentially time machines. Since light from distant galaxies travels for a long time before it reaches our telescope,

NASA's Webb Telescope 'weighs' galaxy Firefly Sparkle, revealing its mass and star formation processes 600 million years after the Big Bang.

For the first time, scientists using the NASA/ESA/CSA James Webb Space Telescope (JWST) have discovered and measured the mass of a galaxy that existed just 600 million years after the Big Bang. Nicknamed the Firefly Sparkle galaxy,