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'Alien asteroid' may be the oldest object in the solar system

An "alien asteroid" that circles the sun in the giant gas planet Jupiter's orbital path, but hurtling in the opposite direction, is the first-known permanent resident of our solar system that astronomers have concluded originated in another star system.

'Made in China' label sheds light on old Java Sea shipwreck

A fresh examination of Chinese ceramics and other cargo from an important Java Sea shipwreck has led researchers to conclude that the vessel sank a century earlier than previously thought, providing insight into Asia's maritime trade more than 800 years ago.

Scientists explore DNA secrets of green-blooded lizards

A group of lizards inhabiting the island of New Guinea boasts one of the most exotic traits of any animal: green blood. And scientists have been trying hard to figure out what benefit this characteristic -- caused by high levels of an ordinarily toxic green bile pigment -- may give them.

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Prodded by Trump, FBI to look into complaint about its 2016 tactics

WASHINGTON The Justice Department agreed on Monday to investigate "any irregularities" in FBI tactics related to President Donald Trump's 2016 campaign after Trump questioned whether an FBI informant had been planted into his political organization. | Video