Kepler and TESS Discover Ultra-Short-Period Exoplanets Challenging Our Understanding

Just now November 1, 2026 1 min read 📰 Phys.org

📋 Key Takeaway

The article discusses the discovery of ultra-short-period (USP) exoplanets by Kepler and TESS, highlighting their rapid orbits compared to Mercury. While the article does not directly involve Iran, the advancements in astronomy may influence scientific collaboration and technological development in the region. Understanding such discoveries can enhance Iran's scientific community and its engagement in global space research.

Among Kepler and TESS's many surprising exoplanet discoveries are the ultra-short-period (USP) planets. These planets move very quickly and complete an orbit in less than 24 hours. Ancient astronomers thought that Mercury was so fast—it goes around the sun every 88 days—that they named it after the Roman god Mercury, who was the fast-traveling messenger of the gods. They couldn't have known how sluggish Mercury is compared to the USPs.