New research suggests that dark energy isn't needed to explain the acceleration in the expansion of the universe — instead ...

An acceleration clause is a provision in a mortgage that allows the lender to require the full repayment of the loan early.

When an object changes velocity, it accelerates. Acceleration is the change in velocity per second and is measured in m/s 2. Acceleration is a vector quantity because it has size and direction.

There is evidence, however, that we are seeing an acceleration in the pace of change at work, and leadership teams are struggling. Change in business, we know, is the only constant. The rate or ...