Astronomy News:- Theia Collision - Traces Found on Moon

[alex_greene]

Traces of Theia Found on Moon

Scientists have found traces of what could be Theia on the surface of the Moon. Theia is the planet that is supposed to have collided with the Earth to form the Moon; now they are claiming that they have found residual traces confirming the Theia Collision Hypothesis.

 

[sideranautae]

Interesting but, could be from later collisions just as easily. So, it doesn't confirm anything concrete. But, makes for a good news story anyway.

 

[Rick]

The three rock samples used were from Apollo missions 11, 12 and 16. As they are from 3 different locations and are similar in composition, it's likely they are from a single source spread over a wide area.

 

[Hopeless]

So can this also mean the world we call Earth today is actually Theia and that's why they're having so many problems distinguishing which is which?

Also does that also mean Theia is Mondas?

 

[locarno24]

Yes and no.

Most non-earthlike rock formations on Earth will be destroyed over deep time periods because Earth is tectonicly active - rock is continuously being melted into the mantle and redeposited at plate edges (obviously this depends how long ago you're talking about!). It's unlikely you'd find anything on Earth you can point to as having once been part of Theia.

The moon on the other hand is an inert lump of rock without a molten core - if a bit of rock lands on it, it stays there, in its definably non-self composition and crystal structure, potentially for billions of years, until an astronaut picks it up and says "hey, this bit looks funny, doesn't it?"

As to Theia being Mondas - depends. Anyone seen any cybermen recently?

 

[Hopeless]

Double checks the parade of Storm troopers...

Nope, no Cybermen maybe they're all surrounding all of the remaining 1950's police boxes hoping one of them is the right one? :twisted:

Meanwhile... does this mean Theia is this Nephi or whatever its called that was supposed to be out there looking for a rematch? :shock: