Physics
They may be child's play, but some serious physics makes them bounce so well.
If speed was the problem, then here is the physics of what may have happened.
Gamma rays could improve screening for nuclear and other hazardous materials.
Asking questions that don't muddy the waters about wave-particle duality.
Could life as we know it have developed if fundamental physics constants were different?
New laser design could have environmental, homeland security applications.
Simulation assesses odds of intercepting interstellar communications.
Physicist Kip Thorne addresses critiques of movie's plot elements.
Two Massachusetts teams develop slick coatings to keep ketchup, other items from sticking to surfaces.
Fifty years after the term "black hole" was coined, audiences and scientists remain captivated.