ultraviolet light

James Webb Space Telescope Discovers ‘Cosmic Gems’ in the Extremely Early Universe (Video)

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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

This Canadian telescope could fill the coming ‘ultraviolet gap’

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Artist’s impression of the Canadian CASTOR telescope, or Cosmological Advanced Survey Telescope for Optical and UV Research. . The ultraviolet universe is invisible from Earth’s surface, and most of what we see comes from a single orbiting observatory that could be retired in just a few years. The Hubble Space Telescope is still in good … Read more