GJ 367b: A dense ultra-short period sub-Earth planet transiting a nearby red dwarf star
3 institutional releases
Published in Science · View the paper (DOI)
Astronomers have discovered an ultra-short-period planet GJ 367 b, which orbits its star in just eight hours and has a radius of 72% that of Earth. The planet's mass is 55% of the Earth's, indicating it likely has an iron-rich core, similar to Mercury's interior.
Coverage from 3 institutions
- TESS discovers a planet the size of Mars but with the makeup of Mercury Massachusetts Institute of Technology · Dec 2, 2021 · first to report
- Discovered: a nearby sub-Earth exoplanet as dense as pure iron American Association for the Advancement of Science (AAAS) · Dec 2, 2021
- Ultra-light and super-fast - Discovery of sub-Earth planet GJ 367b German Aerospace Center DLR Institute of Planetary Research · Dec 2, 2021