Theories
Is their theories that life is in space?
Yes, Marc Kaufman believes that we are not alone in the universe.
What did life come from?
Temperature
What do we call aliens?
“Little Green Men.”
Life originated between 3.5 to ___ billion years ago.
4
What could crash into another planet to form life?
A comet
Are aliens hibernating or "dormant" in space?
Yes, some studies say that they are until the universe cools.
Who said, "Surely some of them (Stars) have undergone what Earth has undergone and developed life, and eventually what we call sentient life."
Shostak
What do some people believe aliens look like other planet?
That they are invisible.
T or F
Aliens have already visited us.
True
What does a planet have that indicates it has life or could possibly have life on it?
Radio Signals
The theory that life on the earth originated from microorganisms or chemical precursors of life present in outer space and able to initiate life on reaching a suitable environment.
Panspermia
"If we are the only intelligent beings in the galaxy, or for that matter in the universe, then we are truly a ______," Shostak said.
miracle
True or False. Do some people believe that aliens are probably not invisible?
False
What system are aliens taking advantage of?
Star System
Who had an idea of what we would see if we found a planet that has life on it?
Carl Sagan
Where do some people believe aliens are buried?
Deep in the ocean.
_ to 4.2 billion years ago
4 to 4.2 billion years ago
What do some people believe that aliens look like on different planets?
They sometimes believe that they almost look like humans.
What are aliens doing to take advantage of the star system and avoid us?
Jumping from one star to another.
How far is the nearest planet that could have life on it in light years.
Life on the earth originated from microorganisms or ________ precursors.
chemical
Where did life evolve if it was in the deep ocean?
Near a hydrothermal vent.
What is the name of the aliens that people call them sometimes?
"Little Green Men"
What did life come from?
Temperature
How many years is 12 light years?
200,000 years