The Birth of the Moon: How Did It Get There in the First Place?

The Moon is a mys­tery. For all its familiarity–the reg­u­lar­i­ty of its phas­es, the fact that every­where on Earth it looks the same–the Moon has always been an enig­ma, a lumi­nous ques­tion mark rolling across the night sky.

In this new video from Cos­mic Jour­neys, we learn about some of the lat­est sci­en­tif­ic research into the struc­ture and his­to­ry of the Moon. In par­tic­u­lar, we learn the lat­est ideas on what is per­haps the great­est of lunar mys­ter­ies: the ques­tion of how the Moon got there in the first place.

The lead­ing can­di­date for an answer is the Giant Impact Hypoth­e­sis, which posits that some­time in the ear­ly stage of the Solar System–about four and a half bil­lion years ago–a large pro­to-Earth col­lid­ed with a Mars-sized body named “Theia,” caus­ing a huge cloud of mate­r­i­al from both bod­ies to fly out into space. Some of the mate­r­i­al remained in the Earth­’s orbit and coa­lesced into the Moon. It’s a fas­ci­nat­ing hypoth­e­sis. To see more videos from the same series, vis­it the Cos­mic Jour­neys chan­nel on YouTube, or the Spac­eRip blog.

Relat­ed Con­tent:

The Moon Up Close, in HD

A Year of the Moon in 2.5 Min­utes

The Far Side of Moon: A Rare Glimpse from NASA

125 Great Sci­ence Videos

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  • endlessmath says:

    The moon was once part of the earth. She has been made into a satel­lite for the earth. At night she takes over reflect­ing the light of the sun, she has mag­net­ic attract­ing pow­ers on the earth, she affects the waters and tides on the earth and her lunar cycle of 28 days is in cohe­sion with the men­stru­al cycle of women. She is baron like the desert lack­ing the sub­stance of life which is water, where there is no water there is no life peri­od and the moon craves the water she once had this is why it still affects the waters upon the earth. Her weight is 1/3rd of the earth and she reflects the light of the sun while the earth reflects the light of god. Peace!

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