Even though we can explore the universe with great precision, there is still a lot we don't know, according to Ulf Danielsson ...

How do we know the speed of light – and why does it have a speed limit at all? Leah Crane explores the history of one of the ...

Scientists have discovered that dark matter, the universe's most mysterious "stuff," obeys gravity on vast cosmological scales. This could help to dismiss the possibility of a fifth fundamental force ...

Having good neighbors can be very valuable—even in the atomic world. A team of Amsterdam physicists was able to determine an ...

Scientists at TU Wien found that electrons need specific “doorway states” to escape solids, not just energy. The insight ...

Astronomers are rethinking one of cosmology’s biggest mysteries: dark energy. New findings show that evolving dark energy models, tied to ultra-light axion particles, may better fit the universe’s ...