1 / 7

Are We All Aliens? The Case for Panspermia

2/11/2014 Warm Up : One theory of the origin of life suggests life could have come to Earth from another planet. In a paragraph of at least five lines, tell what you think of this idea. Are We All Aliens? The Case for Panspermia. Are We All Aliens?. Life began on Earth ____________ years ago

avari
Télécharger la présentation

Are We All Aliens? The Case for Panspermia

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 2/11/2014 Warm Up: One theory of the origin of life suggests life could have come to Earth from another planet.In a paragraph of at least five lines, tell what you think of this idea.

  2. Are We All Aliens?The Case for Panspermia

  3. Are We All Aliens? • Life began on Earth ____________ years ago • Define panspermia: • Two recent discoveries that support panspermia

  4. Agreement, but still caution 4. The prevailing theory on the rise of life on Earth states:

  5. Panspermia: Its own origins and evolution 5. Define ubiquitous: 6. How did Louis Pasture lead some to conclude life came from space?

  6. Support for parts of panspermia • Discovery made in Antarctica and its significance. • How long would it take for a space rock to make the trip from Mars to Earth?

  7. Earth as an exporter of life • How could a rock containing life be transferred between Earth and Mars? • Why is life more likely to have started on Mars and then traveled to Earth, than the other way around?

More Related