Space & the Universe
Physics in Action
There and Back Again: An Asteroid's Tale
Scientists analyze asteroid dust retrieved by spacecraft
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People in Physics
Interview with Astronaut Don Pettit
We talk to Don about scary moments in space, immigrating to Mars, human spaceflight and more.
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Physics Buzz
The Rocketman Triathlon Video: Racing Through the Kennedy Space Center
After the finish. Bike, t-shirt, finisher's medal and TARDIS towelThis past Sunday, the day after Star Wars Day, I competed in the world's nerdiest triathlon, The Rocketman. Smooth Running teamed up with NASA to set up a race through the ...
Writer's Gallery
Einstein's Dreams Review
Einstein's Dreams takes the reader on a journey through different conceptions of time. What if time stood still? What if time slowed down on the highest mountain peaks? Find out why this modern classic is a must-read for those looking to dabble in physics, philosophy, or psychology.










One of the largest branches of physics is devoted to studying our vast universe. This section studies things such as gravity waves, black holes and stars.
