The Osiris-REx Space Program

The Osiris-REx Space Program

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Bryce Harper, a student at the University of Queensland, has written a great article for us on the Osiris-REx space mission. this is Bryce’s second article for us at Mostly Science (his first was on skepticism). Check out his newest article below and also his blog by clicking here.

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How Rockets Propel Spacecraft

How Rockets Propel Spacecraft

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A reader recently asked us:

“How to spaceships fly in space when there is nothing to push against?”

Propulsion works following Newton’s 3rd Law: every reaction has an equal and opposite reaction.

Now with jet and propeller engines, they suck in the surrounding air and within the engine fuel is mixed and ignited with the fast moving air to produce thrust,

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Space Weather Explained

Space Weather Explained

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I was asked to explain the various sources for Space Weather. So here we go:

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Explosion On The Sun

Explosion On The Sun

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On August 31, 2012 a long filament of solar material that had been hovering in the sun’s atmosphere, the corona, erupted out into space.

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