A galaxy, found far away in the Universe, shows us what our young Milky Way might have looked like. This galaxy is nicknamed Firefly Sparkle. It is full of new stars and it formed 600 million years after the Big Bang.
Firefly Sparkle’s light has traveled 13.2 billion years to reach us. We can see it because of a powerful space telescope and a special effect of gravity that helps us look at distant objects.
Astronomers found 10 groups of stars in Firefly Sparkle. They also measured its mass and found it is similar to the mass of our Milky Way when it was young.
The light from this galaxy appears as a bright, stretched line in the sky. Astronomers can understand its shape and features from this light. They say star formation happens at different times, showing many stages of life for the stars.
Firefly Sparkle gives us a rare view of how small galaxies grow. It is close to two other galaxies, showing they might interact and grow together.
More galaxies like Firefly Sparkle will be discovered, helping us learn more about the early Universe.
