The Sun is the star at the center of the Solar System. It is a nearly perfect ball of hot plasma, heated to incandescence by nuclear fusion reactions in its core. The energy from the Sun is vital for life on Earth.
When the James Webb Space Telescope detected potential biosignatures in the atmosphere of K2-18 b last year, the discovery sparked intense debate. Here was a sub-Neptune exoplanet 124 light years away, possibly harboring methane, carbon dioxide, and even dimethyl sulfide which is a gas produced by phytoplankton on Earth. But before we get too excited about alien life it’s necessary to understand if this planet's atmosphere can even survive the harsh environment from the host star!

