This first lecture of Unit 4 - Life in the Solar System - is a quick
tour of our Solar System reviewing the planets, dwarf planets, moons,
and small bodies that make up our celestial home. This lecture will
introduce many of the places we will be considering in detail over the
next two weeks, and which we'll find around other stars. Recorded live
on 2009 O ... Show More
Oct 2009
Lecture 24: The Jovian Planets
We turn our attention to the Giant Planets of the outer Solar System: the gas giants Jupiter and Saturn, and the ice giants Uranus and Neptune. We will review their structure and properties, and then examine their systems of moons, with special attention to the giant moons. While ... Show More
47m 50s
Oct 2009
Lecture 25: The Requirements for Life in the Solar System
Having completed our tour of the Solar System, we now turn to a discussion of the requirements for life, and where those requirements might be satisfied elsewhere in the Solar System. Some - energy, complex chemistry, and liquid water - seem obvious, but they are not the only pos ... Show More
47m 4s
<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
