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A ‘captured’ alien planet may be hiding at the edge of our solar system — and it’s not ‘Planet X’

An international team of researchers recently simulated the unstable celestial mechanics of the early solar system

NASA rover spots bizarre donut shaped rock on Mars

Earlier this year, astronomers discovered a strange structure on Mars resembling a bear’s face

NASA just recycled 98% of all astronaut pee and sweat on the ISS (engineers are thrilled)

Yes, the achievement hinges on better recycling tech for astronaut pee.

Scientists discovered a crucial element for life gushing out of Saturn’s icy ocean moon

An international team discovered signs of sodium phosphates, a salt sometimes used in deli meat here on Earth

China’s Space Program: Designed to defeat the US – Analysis

Far more significant than scoring space spectaculars is the question of which nation will achieve military dominance in the domain of near-earth space

NASA gives go for launch of mission to $10-quadrillion asteroid

It's estimated that the mineral wealth in the belt is enough to cut a $100-billion check for every person on Earth

Scientists demonstrate wireless power transmission from space to Earth for first time

The space solar power prototype is one of three key technologies being tested by the California Institute of Technology’s Space Solar Power Project

NASA: Special Committee on UFOs meets today – Official report of findings expected

US defense officials have said the Pentagon's recent effort to investigate such sightings has resulted in hundreds of new reports being investigated with most remaining unexplained.

New supernova thrills astronomers and skywatchers around the world (photos)

The Pinwheel Galaxy has a new bright spot.

China’s mysterious space plane released an unidentified “object” in orbit, US intelligence reveals

Here's what we know (and don't know) about China's mysterious space plane which just landed after nine months in orbit on a secret mission

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