How is it that galaxies merge and collide but the universe is expanding and everything is moving away from everything else? Justin HammersleySterling Heights, Michigan Whether or not galaxies merge ...

Newton's theory of gravity posited instantaneous gravitational attraction, successfully predicting planetary orbits. Einstein's special relativity challenged this, necessitating the development of ...

Dark energy — a mysterious force pushing the universe apart at an ever-increasing rate — was discovered 26 years ago, and ever since, scientists have been searching for a new and exotic particle ...

When the densest objects in the universe collide and merge, the violence sets off ripples, in the form of gravitational waves ...

Pennsylvania’s largest amusement park is adding a new attraction in 2025. Hersheypark is adding the Twizzlers Twisted Gravity attraction when it opens the park next year. In the just over minute-long ...

The study of black holes has long been at the forefront of gravitational physics, and recent advances have significantly enriched our understanding of these enigmatic objects within the framework of ...