Are there other Earths out there? Do they have life on them? This
lecture looks at the search for ExoEarths - Earth-sized planets in the
habitable zones of their parent stars, and what we might learn from
measuring them. The ultimate goal of all planet searches is to find
other Earth's, what the late Carl Sagan so poetically called
the "pale blue dot" as ... Show More
<p>La durée de vie d'une étoile peut nous renseigner sur sa composition et sur l'existence éventuelle de la vie dans le cosmos. mais, en dehors du Soleil, il est assez difficile de déterminer l'âge d'une étoile.</p><br><p>L'importance de la masse</p><br><p>En évaluant, grâce à la ... Show More
