NASA’s Webb Studies How Planet Survived Death of its Star

Summary
WD 1856 b likely migrated to its current location billions of years after its star became a white dwarf.
Exoplanet WD 1856 b is a world that shouldn’t exist. It orbits a white dwarf star at a separation of less than 2 million miles – well within the “danger zone” where it should have been engulfed when its host star went through a red giant phase earlier in its life. To understand how it survived and learn more about it, astronomers studied this planet with NASA’s James Webb Space Telescope. Their findings could have implications for the future of our own solar system in 5 billion years.
Full Article
NASA’s James Webb Space Telescope is giving us new insight into the far-future of solar systems like our own, as the agency continues to reveal the secrets of the universe and our place in it. Billions of years ago, a Sun-like star nearing the end of its life swelled tremendously in size to become a red giant before ejecting its outer layers, leaving a hot, remnant core known as a white dwarf. As a red giant, the star should have engulfed and destroyed any nearby planets. Yet astronomers have found a Jupiter-sized exoplanet orbiting the white dwarf every 34 hours at a separation of less ...Visit NASA Science to view the full news release including article text and associated Webb imagery, graphics, scientific visualizations, videos, captions, text descriptions, and other information.
News releases highlighting the discoveries of NASA’s James Webb Space Telescope are produced for NASA by the Space Telescope Science Institute (STScI) in Baltimore, Maryland, under NASA Contract NAS5-03127. News release content is developed by the News Team in STScI’s Office of Public Outreach.
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