“Gravity can exist without mass.” It’s a statement that upends a century of astrophysical dogma and, for some, sounds as plausible as finding a unicorn in a particle accelerator. But in a series of ...

Something seems to be missing from the universe, and the favored model of physics calls it “dark matter” – but despite a century of searching, it remains a no-show. A new paper proposes an alternative ...

Dark matter is a hypothetical form of matter that is implied by gravitational effects that can't be explained by general relativity unless more matter is present in the universe than can be seen. It ...

In the vast universe, galaxies rotate in ways that don’t make sense if only visible matter is considered. For almost a century, scientists have tried to explain this by searching for a hidden force ...

Gravity, a fundamental force we take for granted, might be more mysterious than we ever imagined. A groundbreaking study has emerged, challenging long-held beliefs about gravity and its nature. This ...