"This has been a decade-long detective story, with each recorded meteorite fall providing a new clue," said one astronomer.

Following is a transcript of the video. Early in the history of our solar system, something mysteriously knocked Earth slightly off its axis. So today we tilt at 23.5 degrees. But what would ...

The following is a transcript of the video. Stand on the equator and you'll be moving at 1,670 kilometers per hour — faster than the speed of sound! That's how quickly Earth rotates on its axis ...

Watch this video to learn about calculating the area above and below the x-axis. Calculate the total area of the curve \(y = {x^3}\) and the \(x\)-axis between \(x = 2\) and \(x = - 2\).

To calculate the area between a curve and the \(x\)-axis we must evaluate using definite integrals. First, we need to find out where the curve cuts the \(x\)-axis. Remember, a curve cuts the \(x ...