gravity
Gravity’s Magic: New Seafloor Map Shows Earth’s Uncharted Depths
Volcanoes! Seafloor spreading! Hidden ridges and mountains! These are the wonders being revealed in new maps of Earth's sea floor.…
What is Nothing?
Is there any place in the Universe where there's truly nothing? Consider the gaps between stars and galaxies? Or the…
How Do The Tides Work?
Anyone who lives close to ocean is familiar with the tides. And you probably know they have something to do…
How Can We Clean Up That Space Junk?
We're total litterbugs. Here on Earth, and out in space. What are some strategies that have been developed to clean…
How Do Gravitational Slingshots Work?
Have you ever heard that spacecraft can speed themselves up by performing gravitational slingshot maneuvers? What's involved to get yourself…
Why Do People Go Crazy During a Full Moon?
Have you ever heard that people go crazy during a full Moon? What's going on to cause all this lunacy?…
Why is the Moon Leaving Us?
Goodbye Moon. Every year, the Moon slips a few centimeters away from us, slowing down our day. Why is the…
Can Tatooine Be Real?
We're familiar with the sky on Tatooine with its twin suns. But could a planet actually orbit two stars at…
Can You Escape the Force of Gravity?
It feels like you just can't get away from clingy gravity. Even separated by distances of hundreds of millions of…
Is Andromeda Drifting Towards Us?
In a Universe that's expanding apart, isn't it strange that Andromeda is actually drifting towards us? Dr. Thad Szabo from…