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Case of the Inflated Exoplanet

Why is the warm gas-giant exoplanet WASP-107 b so puffy? Using data collected by NASA’s James Webb Space Telescope, combined with prior observations from NASA’s Hubble Space Telescope, two independent research teams have an answer.

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This artist’s concept shows what the warm Neptune exoplanet WASP-107 b could look like based on recent data gathered by NASA’s James Webb Space Telescope along with previous observations from NASA’s Hubble Space Telescope and other observatories. Observations captured by Hubble’s WFC3 (Wide Field Camera 3), Webb’s NIRCam (Near-Infrared Camera), Webb’s NIRSpec (Near-Infrared Spectrograph), and Webb’s MIRI (Mid-Infrared Instrument) suggest that the planet has a relatively large core surrounded by a relatively small mass of hydrogen and helium gas, which has been inflated due to tidal heating of the interior.

Earth Information Center

For more than 50 years, NASA satellites have provided data on Earth's land, water, air, temperature, and climate. NASA's Earth Information Center allows visitors to see how our planet is changing in six key areas: sea level rise and coastal impacts, health and air quality, wildfires, greenhouse gases, sustainable energy, and agriculture.

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The Kimberley coast of Western Australia has one of the largest tidal ranges in Australia and the world. At Montgomery Reef, in Collier Bay, water levels drop sharply at low tide, allowing the plateau-shaped reef to emerge several meters above the water level.

Modeling the Hawaiian Shoreline

Present-day Island of Hawai’i coastal flood risk, with higher risk indicated in dark blue, was modeled to help the County of Hawai’i in their shoreline setback plan. Sea Surface Temperature Anomaly data from 2022 Group for High Resolution Sea Surface Temperature Moderate Resolution Imaging Spectroradiometer (MODIS) indicate low temperatures in the East (red) to high in the West (orange). Inland, high probability locations of wetlands are shown in bright yellow and could aid in climate adaptation planning.

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