Presentation is loading. Please wait.

Presentation is loading. Please wait.

Is there life beyond earth?

Similar presentations


Presentation on theme: "Is there life beyond earth?"— Presentation transcript:

1 Is there life beyond earth?
SETI -- Search for Extraterrestrial Intelligence

2 Astrobiology The science that studies the origin, evolution, and distribution of life in the universe. Some scientists believe life began on Earth 4 billion years ago.

3 What does life require? Raw materials: hydrogen, carbon, oxygen, nitrogen and minerals like iron and sulfur. Energy: Sun, volcanoes A liquid: Water Planets must contain all of these things. . . Earth contains raw materials Earth has numerous energy sources Earth is covered in liquid water

4 Mars What it current looks like What is used to look like
Ancient Volcanoes Ancient Rivers Could it have once been like Earth? Could it hold life?

5 Europa Jupiter’s Moon 6th closest moon Not the largest moon at all
Smaller than Earth’s moon Europa has a solid layer of ice Under the ice could lie an ocean! Tube worms? Hydrothermal Vents?

6 Is there life beyond Earth?
Ideas to support extra terrestrial life Ideas to refute extra terrestrial life


Download ppt "Is there life beyond earth?"

Similar presentations


Ads by Google