Scientists at PRL Discover "TOI-665 1b," a New Planet Five Times Larger Than Earth. Science and Technology | Dated: 20 Nov 2024 An international team of scientists from the Physical Research Laboratory (PRL) in Ahmedabad (Gujarat) has discovered a new Saturn-sized exoplanet named "TOI-665 1b" orbiting a Sun-like star, TOI-6651. 🎯 Key Highlights: - TOI-665 1b, an exoplanet outside our solar system, is five times bigger and 60 times heavier than Earth. - The planet was identified using the advanced PARAS-2 (PRL Advanced Radial velocity Abu Sky Search-2) spectrograph. This is the 4th exoplanet discovery by PRL scientists. - The planet is located at the edge of the "Neptunian desert," a sub-Jovian desert defined as the region close to a star (period < 2-4 days) where no Neptune-sized (> 0.1 MJ) exoplanets are found. 💡 Other Important Facts: (i) The planet orbits TOI-6651 in a close, 5.06-day cycle. (ii) The planet's orbit is slightly oval in shape, or eccentric, further distinguishing it from typical gas giants like Saturn in our solar system. (iii) The star, TOI-6651, is a G-type sub-giant that's slightly larger and hotter than our Sun, with a surface temperature of about 5940 Kelvin (K). 📚 Test Your Knowledge: Recently, Which laboratory is credited with the discovery of the new planet "TOI-665 1b"? Correct Answer: PRL 🚀 Quick Recap: