book 1 Flashcards
(10 cards)
What is the Big Bang Theory?
The Big Bang Theory is the leading explanation about how the universe began.
How long ago is the universe thought to have originated?
The universe is thought to have originated 13.8 billion years ago from a very small, extremely hot and dense region.
What event is believed to have occurred in the early universe?
An immense and powerful explosion scattered everything outwards.
What analogy is used to describe the expansion of the universe?
The massive expansion blew space up like a gigantic balloon.
Is the universe still expanding?
Yes, the universe is still expanding as a result of the Big Bang.
What discovery did Wilson and Penzias make in 1965?
They accidentally discovered a faint noise from space that seemed to support the Big Bang Theory.
What did the noise discovered by Wilson and Penzias resemble?
It resembled interference on a screen when it’s not properly tuned in.
What did scientists suggest the noise was?
Scientists suggested it was what was left after the Big Bang that started everything, 13.8 billion years ago.
What impact did Wilson and Penzias’ discovery have on Fr. Lemaître’s theory?
Their discovery added massive weight to Lemaître’s theory of a Big Bang explosion.
What is the current status of the Big Bang Theory?
The Big Bang Theory remains the best explanation of the present state of the universe that anyone has found.
