Earth May Have Had Two Moons at One Time

[rodsky]

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(from Space.com)
A tiny second moon may once have orbited Earth before catastrophically slamming into the other one, a titanic clash that could explain why the two sides of the surviving lunar satellite are so different from each other, a new study suggests.

The second moon around Earth would have been about 750 miles (1,200 kilometers) wide and could have formed from the same collision between the planet and a Mars-sized object that scientists suspect helped create the moon we see in the sky today, astronomers said.



The gravitational tug of war between the Earth and moon slowed the rate at which it whirls, such that it now always shows just one side to Earth. The far side of the moon remained a mystery for centuries until 1959, when the Soviet Luna 3 spacecraft first snapped photos of it. (The far side is sometimes erroneously called the dark side, even though it has days and nights just like the near side.)


(Four snapshots from the computer simulation of a collision between the moon and a smaller companion moon show most of the companion moon is accreted as a pancake-shaped layer, forming a mountainous region on one side of the moon. Credit: M. Jutzi and E. Asphaug, Nature.)

More info here:
Earth Had 2 Moons That Crashed to Form 1, Study Suggests | Moon Formation, Facts & Figures | How Earth's Moon Formed | Space.com

-RODION

[handsoff241]

We should dig the moon and find out more!

[jeshcel]

ive read it also something like this in yahoo, of which a certain time when there are 2 moons in the sky

what would it look like when there are 2 moons at night? a brighter night?

[g0dmenuelz]

COoollll..... hehe

[moy1moy1]

how about the titanic moon that contributed to earth's creation? lisud i scan pero naa to sa video nga gishare ni cromagnon hehe.. was that not the same moon?

[rodsky]

how about the titanic moon that contributed to earth's creation? lisud i scan pero naa to sa video nga gishare ni cromagnon hehe.. was that not the same moon?

You're pertaining to GIH: Giant impact hypothesis - Wikipedia, the free encyclopedia

This new theory, basically is an "extension event" to that other theory.

-RODION

[gamemailxxx]

mura ana jud mahitabo brighter jud atong gabii ana.

[gintusnumbernine]

^pde sad inig buntag kay naay sun nya naa pud moon hahaha

naa man ganeh times nga around 1pm kay makita na ang moon ö


mura na ta ug planet NEMIC hahaha
ubay2 ug manggawas sa kalangitan ma unsa mang orasa hahaha

thanks for the heads up TS, i never wondered why i always see the same part of the moon, mao nag wonder pud ko sa Transformers 3 nganong "Dark of the Moon" ang title unya nagpakita jud sila ug DARK sa moon hahaha

something new for me haha

[rodsky]

^pde sad inig buntag kay naay sun nya naa pud moon hahaha

naa man ganeh times nga around 1pm kay makita na ang moon ö

This statement is a good example of how most people often think "mawala" ang moon sa langit for a few days, then "mobalik" after a few. The truth is the moon is ALWAYS in the sky and only disappears for 12 hours, balik na dayon sa langit after (of course, dapat dili cloudy in order for you to see it)--you just have to know where to look.

-RODION

[DEStRucto]

saw this in space.com.. and the earth before has rings... gone after 1 millennia cool sad, murag maka tuyok sa imagination