The accelerating expansion of the universe is usually explained by an invisible force known as dark energy. But a new study suggests this mysterious ingredient may not be necessary after all. Using an ...

Newton's laws of motion, often perceived as abstract, are actually evident in everyday experiences. The first law explains inertia, demonstrated by seatbelts in cars. The second law, F=ma, clarifies ...

Newton's laws of motion are everywhere around you, explaining everything from why you feel pushed back in your seat when a car accelerates to how rockets blast off into space. These three simple ...