NASA's TESS satellite discovered a new planetary system, TOI-270, around a red dwarf star 73 light years away. The system includes three planets, a super-earth and two sub-Neptunes, which are not found in our solar system. TESS uses the transit method to find exoplanets, similar to Kepler but with a different approach. The TOI-270 system is stable and offers potential for further study, especially with the upcoming James Webb Space Telescope. Future observations may reveal more planets and provide insights into their atmospheres and habitability.

What is the significance of the planetary system discovered around the star TOI-270?

How does the TESS satellite differ from the Kepler Space Telescope in its approach to finding exoplanets?

What types of planets were found orbiting TOI-270, and why are they considered exciting to astronomers?

Explain the concept of resonance in the context of the TOI-270 planetary system.

What future observations are planned to learn more about the planets in the TOI-270 system?