A few weeks ago, we got two emails that were so similar and so intriguing we had no choice but to investigate.

Get ready to spend some time pondering time, because in this episode of StarTalk, host Neil deGrasse Tyson is joined by co-host J. Richard Gott, author of Time Travel in Einstein’s Universe and an expert in exotic astrophysics.

According to Einstein’s Theories of Relativity, time travel is possible.

For this experiment you need about 10 checkers.

Easy way to teach kids about gravity and motion with just an empty cup (add water at your own risk) and a napkin or paper towel.

How do you describe your place in the 4th dimension?

Exploring properties of matter, motion, force, engineering design process.

Engineering design process, pushes and pulls (forces), motion, gravity, friction.

Through video clips, students experience crashes (between cars and between cars and the track wall) that occurred during NASCAR races, which raises this question: How do speed and mass (weight) affect the amount of damage to a race car in a collision?

While many NASCAR fans wonder how race cars can achieve speeds of more than 200 mph., middle school students consider how drivers are able to slow their cars from 200 mph. to 0 mph.!

What keeps Ernesto’s raw egg spinning after he lifts his finger?

Join 3M scientist Tesha R.-Alston Dampier as she shows you how a spinning motion changes the way things move.