1 billion years ago

NOVA | Australia: First 4 Billion Years.

Dec 20, 2010. The Archean Expansion period (3.33 to 2.85 billion years ago) is .. As I believe that God is objective truth to all mankind, I have an issue with.
I. IN THE BEGINNING THERE WAS A SINGULARITY. No time or space; our present physical laws did not apply. Then about 12-20 billion years ago or so, the.

I. IN THE BEGINNING THERE WAS A SINGULARITY. No time or space; our present physical laws did not apply. Then about 12-20 billion years ago or so, the.

Red and green lines represent the range of the estimates while time is measured in billions of years ago (Ga). Stage 1 (3.85–2.45 Ga): Practically no O2 in the.
The period of Earth's history that began 2.5 billion years ago and ended 542.0. ( 2.5 to 1.6 billion years ago), Mesoproterozoic (1.6 to 1 billion years ago), and.
In astronomy, geology, and paleontology, bya or "b.y.a." is an acronym for billion years ago. This abbreviation is commonly used as a unit of time to denote.

Climate Timeline Tool: Summary of Beyond.
earth wasnt around 1billion years ago. only God ^whoever wrote that obviously didnt research. the earth is 4.6 billion years old. 1 billion years ago: - multicellular.
Terasecond and longer - Wikipedia, the free encyclopedia.
Chronology of the universe - Wikipedia, the free encyclopedia.
Mesoproterozoic Era 1.6 to 1 bya /. 1.2 billion years ago. Sex 1.2 bya / Algae /. 1 billion years ago. Colony of Algae 1 bya / Hormones / Death / Fungi / Ecosystem.
The history of life on Earth began about 3.8 billion years ago, initially with single- celled prokaryotic cells, such as bacteria. Multicellular life evolved over a billion.
Apr 20, 2013. Researchers calculate it began 10 billion years ago - predating our planet .. I am so fascinated by this but not as fascinated as I am with the.
At the beginning of this time period, some 2 billion years ago, some of the single- celled bacteria that filled the Earth's oceans developed the ability to use oxygen.
Alien Life: Studying life from 1 billion years ago and Messaging to.

History of the Earth - Wikipedia, the free encyclopedia.

1 billion years ago

Lecture 7 - Earth's First 3.7 Billion Years - LDEO Climate Group.