We experience the flow of time because it’s a natural outcome of the basic laws of physics. But we may need to build a whole ...

A biochemist breaks down challenges that astronauts Suni Williams and Butch Wilmore will face after their long duration in ...

Scientists have long sought the particle that carries the force of gravity, but a new theoretical model tosses out that idea entirely – and shows how it could be tested in experiments ...

Scientists propose a relatively simple yet still complicated tabletop experiment to test the quantumness of gravity, aiming to reconcile general relativity and quantum mechanics.

Force is what helps our muscles get stronger, forces what helps our bones to stay strong, forces what helps our heart to stay strong by having to pump the blood against gravity. So when you take ...

The findings suggest that dark energy is dynamic and changes over time, and that it used to be stronger in the early stages of the universe but is weaker now. That’s particularly odd because most ...

Ask almost any physicist what the most frustrating problem is in modern-day physics, and they will likely say the discrepancy between general relativity and quantum mechanics. That discrepancy has ...

Scientists suggest that dark energy, the enigmatic force driving the universe's expansion, appears to be weakening, ...