Moon formation: Was it a ’hit and run’ accident?
2012 08 01

From: BBCNews

Scientists have proposed a fresh idea in the long-running debate about how the Moon was formed.

What is certain is that some sort of impact from another body freed material from the young Earth and the resulting debris coalesced into today’s Moon.

But the exact details of the impactor’s size and speed have remained debatable.


Computer simulations suggest a large, fast-moving body impacted the Earth to create the Moon


In a report online to be published in Icarus, researchers suggest that the crash happened with a much larger, faster body than previously thought.

Such theories need to line up with what we know about the Moon, about the violent processes that set off the creation of moons, and what computer simulations show about the more sedate gravitational "gathering-up" that finishes the job.

In recent years, scientists’ best guess for how the Moon formed has been that a relatively slowly moving, Mars-sized body called Theia crashed into the very young Earth.

That would have heated both of them up and released a vast cloud of molten material, much of which cooled and clumped together to give rise to the Moon.

That would suggest that the Moon is made up of material from both the early Earth and from Theia, which should be somewhat different from one another.


[...]


Read the full article at: bbc.co.uk





Related Articles
Apollo Moon flags still standing says NASA
NASA | Tour of the Moon
Neil Armstrong breaks his silence to give accountants "moon exclusive"
London 2012: Olympic Stadium is officially opened ("Supermoon" night)
Wonders of sun, moon and sky
Moon Oddly Magnetic—Giant Asteroid Crash to Blame?
Spacecraft Footage: The Far Side Of The Moon (Video)


Latest News from our Front Page

Detekt: A New Malware Detection Tool That Can Expose Illegitimate State Surveillance
2014 11 21
Recent years have seen a boom in the adoption of surveillance technology by governments around the world, including spyware that provides its purchasers the unchecked ability to target remote Internet users’ computers, to read their personal emails, listen in on private audio calls, record keystrokes and passwords, and remotely activate their computer’s camera or microphone. EFF, together with Amnesty International, ...
New UK spy chief says tech giants aid terrorism, privacy not ‘absolute right’
2014 11 21
Robert Hannigan, the new head of GCHQ The new head of Britain’s GCHQ, the UK equivalent of the NSA in the U.S., said he believes privacy is not an absolute right and that tech giants must open themselves up to intelligence agencies. “GCHQ is happy to be part of a mature debate on privacy in the digital age,” Hannigan said. “But privacy ...
LOL: Atheist Feminist Pornographer Used as Moral Authority in T-shirt Row
2014 11 21
Dr. Matt Taylor was thrust into the headlines this last week, largely for his lead role in successfully landing a spacecraft on a comet 300 million miles from earth that travels at a speed of 85,000 mph. In short, Taylor and his colleagues pulled off one of the most amazing achievements in contemporary science and space exploration, and in a ...
Forty Years that Unmade France
2014 11 21
Eric Zemmour is a well-known French author and television personality. Of Algerian-Jewish origin, he may seem an unlikely spokesman for French tradition, but he has emerged in recent years as a prominent scourge of ideological orthodoxy. He is unquestionably the most prominent mainstream French commentator who speaks candidly about race. Eric Zemmour This role comes with a price. In 2011 he was ...
Richard Spencer Under Fire
2014 11 21
The Flathead Beacon has a story on the mobbing of Richard Spencer consequent to the publicity over the Budapest conference. The city council is being asked to “an ordinance barring hate-group activities in the community.” As several of the comments note, the First Amendment seems to be of no concern to these activists. The article is interesting ...
More News »