Physics and Astronomy Online

Welcome to PhysLink.com - the physics and astronomy online portal! We feature latest physics news and editorials, extensive science reference and constants section, education section where you can ask our experts any physics or astronomy related question. Also, don't miss our fun page and our online science store.

ScienceIQ Facts

Physics & Astronomy Facts

NASA
Live Fast, Blow Hard, and Die Young

Massive stars lead short, yet spectacular lives. And, they usually do not go quietly, instead often blowing themselves apart in supernova explosions. Astronomers are curious about the details of the f ...

Sputnik and The Dawn of the Space Age

History changed on October 4, 1957, when the Soviet Union successfully launched Sputnik I. The world's first artificial satellite was about the size of a basketball, weighed only 183 pounds, and took ...
Mach 1: Fast planes and Ernst Mach
How Fast is Mach 1?

A Mach number is a common ratio unit of speed when one is talking about aircrafts. By definition, the Mach number is a ratio of the speed of a body (aircraft) to the speed of sound in the undisturbed ...

Science Sidebar

Science Fair Projects Tips
Keeping kids interested in science
Cool summer science projects