HomeNewsJames Webb Space Telescope: New Views of the Cosmos
James Webb Space Telescope: New Views of the Cosmos
July 13, 2022
James Webb Space Telescope:
13.8 billion years ago, the universe was formed in complete darkness, and even after the first stars and galaxies burst into life a few hundred million years later, they continued to exist in complete blackness. They became inaccessible to every eye and instrument because their dazzling light, stretched by time and the expanding cosmos, dimmed into the infrared.
Before now. The James Webb Space Telescope, the most potent space observatory to date, provided a stunning slide exhibition of our fledgling cosmos on Tuesday. The sky is covered in old galaxies that seem like gems on dark velvet. The emergence of young stars from interstellar dust-filled cumulus clouds. hints of water vapor in an alien exoplanet’s atmosphere.
With a primary mirror that is 6.5 meters in diameter as opposed to Hubble’s 2.4 meters, the Webb telescope has nearly seven times the capacity for light-gathering and can therefore go further back in time.
Webb is outfitted with cameras and other sensors sensitive to infrared, or “heat,” radiation, which is another significant distinction. The light that would typically be in visible wavelengths shifts to longer infrared wavelengths, which are generally invisible to human sight, as the universe expands.
On the other hand, because the Hubble telescope is in low Earth orbit, astronauts might go there and repair any damaged or worn-out components or add new, more potent instruments. These changes increased its lifespan by years.