Using the James Webb Space Telescope (JWST), astronomers have discovered star clusters in the ‘Cosmic Gems’ arc that existed just 460 million years after the Big Bang. This marks the first discovery of star clusters in a young galaxy, as it was when the 13.8 billion-year-old universe was less than 500 million years old. The … Read more
Using the Euclid Space Telescope, scientists have discovered a whopping 1.5 trillion orphan stars floating through a massive cluster of thousands of galaxies, one of the largest structures in the cosmos. These orphan stars, torn from their own galaxies, fill the space between the galaxies of the Perseus cluster with ghostly blue light. This so-called … Read more
At first glance, the image doesn’t look like much: a few small bright yellow stars among fainter white stars. And in the middle a spot that looks like a collection of stars. But zooming in reveals a completely different story. That spot does not consist of stars at all, but of dozens and dozens of … Read more
Two supernovasS in a galaxy, and a galaxy so far away that we see it as it was 10 billion years ago, could be crucial in helping to reveal the expansion rate of the universe. This is a measurement that has caused some tension within the scientific community. The galaxy and the two supernovae were … Read more