Name: Joel Levine：为什么我们要重返火星
Uploaded: 2010-03-25T08:59:00Z
Duration: 15 min 57 s
Description: 在TED的NASA，行星科学家Joel Levine展现了一些奇妙且费解关于火星的新发现：被冰层覆盖的环形山、古海洋的遗迹，古代生命存在的强烈迹象。他规划返回火星，探寻更多。

在TED的NASA，行星科学家Joel Levine展现了一些奇妙且费解关于火星的新发现：被冰层覆盖的环形山、古海洋的遗迹，古代生命存在的强烈迹象。他规划返回火星，探寻更多。

Joel Levine：为什么我们要重返火星

Mars, once dismissed as a dead world, now reveals ancient riverbeds, massive ice reservoirs, and plumes of methane gas that could hint at past or present life. The red planet’s surface records 4.6 billion years of history, preserving secrets that Earth's shifting crust has erased. Recent discoveries show Mars once had oceans and now stores water beneath its surface. Exploring Mars with new technology could rewrite what humanity knows about the solar system.

Mars Holds Clues to Life—and Our Own Origins

*Human Mission to Mars*

Remembering the Viking mission to Mars

Planets

TEDx

exploration

science

space

technology

Mars

TEDx Talk

Joel Levine: Joel Levine：为什么我们要重返火星