Physics and Astronomy Online

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ScienceIQ Facts

Physics & Astronomy Facts

An X-ray image of the Sirius star system located 8.6 light years from Earth.
Binary and Multiple Star Systems

Stars, like people, are seldom found in isolation. More than 80% of all stars are members of multiple star systems containing two or more stars. Exactly how these systems are formed is not well unders ...
Wernher Von Braun
Wernher Von Braun

Wernher Von Braun was one of the world's first and foremost rocket engineers and a leading authority on space travel. His will to expand man's knowledge through the exploration of space led to the dev ...
Normal Sight: Normal ray tracing of light to the retina. Shows image will
Does Your Brain Do Flips?

You may not be aware of it, but when you look at the world, the image projected on your retina is upside down. This is due to the optics used by our eyes. Our brain compensates for this upside down vi ...

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