Chemists close in on greener way to make plastics

Apophis, the most intimidating asteroid around, is coming in for a visit. (It's not going to hit us). The space rock is wider than three football fields, and at one point, scientists estimated it had about a 3 percent chance of hitting Earth during an upcoming close pass in 2029.

Do Objects Get More Massive When They Move Close To The Speed Of Light?

Do Objects Get More Massive When They Move Close To The Speed Of Light?