Joan Feynman
... that astrophysicist Joan Feynman , sister of noted physicist Richard Feynman, discovered that auroras are caused by the solar wind's magnetic field interacting with Earth's magnetosphere?
... that astrophysicist <b id="mwDvs"><a href="./Joan_Feynman" id="mwDvw" rel="mw:WikiLink" title="Joan Feynman">Joan Feynman</a></b> <i id="mwDv0">(pictured)</i>, sister of noted physicist <a href="./Richard_Feynman" id="mwDv4" rel="mw:WikiLink" title="Richard Feynman">Richard Feynman</a>, discovered that <a class="mw-redirect" href="./Aurora_(astronomy)" id="mwDv8" rel="mw:WikiLink" title="Aurora (astronomy)">auroras</a> are caused by the <a href="./Solar_wind" id="mwDwA" rel="mw:WikiLink" title="Solar wind">solar wind</a>'s magnetic field interacting with Earth's <a href="./Magnetosphere" id="mwDwE" rel="mw:WikiLink" title="Magnetosphere">magnetosphere</a>?