Physics and Astronomy Online

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Physics & Astronomy Facts

Collision of two gold nuclei at the RHIC accelerator. An attempt to produce quark-gluon plasma in the laboratory.
The Early Universe Soup

In the first few millionths of the second after the Big Bang, the universe looked very different than today. In fact the universe existed as a different form of matter altogether: the quark-gluon plas ...
It's Gonna Hit Us... Or Is It?

Recently, some astronomers were concerned that a newly discovered asteroid might hit Earth in 2017. This was big news because even the impact of a modest-sized asteroid could have a devastating effect ...
The Weightless Environment Brings Special Challenges To Astronauts. Mark Lee Tetherless and Free
Mixed Up In Space

Imagine waking up in space. Groggy from sleep, you wonder ... which way is up? And where are my arms and legs? Throw in a little motion sickness, and you'll get an idea of what it can feel like to be ...

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