All Stories by Trisha Muro
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PhysicsExplainer: Gravity and microgravity
The force of gravity holds us on the ground, keeps planets in orbit and extends throughout space. A very weak gravitational pull is called microgravity.
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SpaceExplainer: Telescopes see light — and sometimes ancient history
Different kinds of telescopes on Earth and in space help us to see all wavelengths of light. Some can even peer billions of years back in time.
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PhysicsExplainer: Understanding electricity
Here’s what allows you to plug in and power up the devices in your life.
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PhysicsScientists Say: Big Bang
The Big Bang is the current theory about how our universe came to be. It began with a vast explosion of matter — a very Big Bang.