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31 Aug 2012

A new reconstruction has given researchers new clues as to how the moon may have formed.

It is believed to have formed from a collision, 4.5 billion years ago, between Earth and an impactor the size of Mars, known as 'Theia'.

However, over the past decades scientists have simulated this process and hit major problems known as the 'lunar paradox' - finding the moon appears to be made up of material that would not be expected if the current collision theory is correct.

read more: The Daily Mail



30 Aug 2012

NASA's Wide-field Infrared Survey Explorer (WISE) mission has led to a bonanza of newfound supermassive black holes and extreme galaxies called hot DOGs, or dust-obscured galaxies.

Images from the telescope have revealed millions of dusty black hole candidates across the universe and about 1,000 even dustier objects thought to be among the brightest galaxies ever found. These powerful galaxies that burn brightly with infrared light are nicknamed hot DOGs.

"WISE has exposed a menagerie of hidden objects," said Hashima Hasan, WISE program scientist at NASA Headquarters in Washington. "We've found an asteroid dancing ahead of Earth in its orbit, the coldest star-like orbs known and now, supermassive black holes and galaxies hiding behind...