Don't Just Read the News, Understand It.
Published loading...Updated

This Giant Planet Shouldn’t Exist – But Astronomers Just Found It Around a Tiny Star

  • Astronomers identified TOI-6894b, a gas giant planet completing a three-day revolution around one of the smallest known stars hosting such a planet, located about 240 light-years away in the constellation Leo.
  • The discovery followed a survey of over 91,000 low-mass red dwarf stars using NASA’s TESS and the ESO’s VLT, challenging current planet formation theories.
  • TOI-6894b is a gas giant with a radius exceeding that of Saturn while having just over half its mass, orbiting its host star at a distance roughly forty times shorter than the gap between Earth and the Sun, resulting in a moderately warm equilibrium temperature near 420 K.
  • Edward Bryant highlighted that understanding how a planet of such considerable size can form around a very small star is a challenge posed by this discovery, and currently, there is no clear explanation.
  • This finding implies many more giant planets could exist around common small stars, forcing a rethink of planetary population estimates and formation models.
Insights by Ground AI
Does this summary seem wrong?

13 Articles

All
Left
Center
3
Right
2

[An article by The Conversation written by Mickael Bonnefoy - Researcher CNRS at the Institute of Planetology and Astrophysics of Grenoble, Grenoble Alpes University (UGA)] You take us on a journey into an atypical stellar system, YSES-1. Why does it intrigue scientists? M. B.: The YSES-1 system is atypical in the exoplanetary bestiary. Located more than 300 light-years away from us, this system 270 times younger than the solar system consists o…

Think freely.Subscribe and get full access to Ground NewsSubscriptions start at $9.99/yearSubscribe

Bias Distribution

  • 60% of the sources are Center
60% Center
Factuality

To view factuality data please Upgrade to Premium

Ownership

To view ownership data please Upgrade to Vantage

読売新聞オンライン broke the news in Japan on Wednesday, June 11, 2025.
Sources are mostly out of (0)