Conventional accounts of the birth of quantum theory often overlook the pivotal role of one of its luminaries – and this has led to a persistent misunderstanding of what it really means, argues physic ...

Before Einstein, special relativity, and E = mc2, what was the prevailing theory on the Sun's seemingly eternal energy?

Einstein believed that black holes didn't really exist. But they do: that much we know. We don't know much else about them.

IFLScience traveled to CERN to get an exclusive insight into the crucial theory of particle physics, its limitations, and ...

In their new book, Lydia Kang and Nate Pedersen survey flat Earth theory, fake moon landings and other scientific myths and why people believe them.

In just the first 259 days of data collection, KATRIN, a beta-decay-based detector in Germany, has set the smallest upper ...

In the vast universe, galaxies rotate in ways that don’t make sense if only visible matter is considered. For almost a ...

If dark energy is weakening, it stands to reason that eventually gravity will become dominant and the universe will begin to contract. In such a scenario, the universe would collapse back into a ...

During the latter part of the 20th century, string theory was put forward as a unifying theory of physics foundations. String ...

Is it possible according to science? Explore the theories, paradoxes, and real-world concepts behind time travel.