For a long time, astronomers have noticed that stars rotate too quickly at the edges of galaxies, as if a hidden mass were preventing them from escaping. This observation raises a fundamental question ...

Scientists have known for 70 years that there is much more mass in galaxies than can be seen. For example, spiral galaxies rotate at speeds that are only possible if the total mass of the galaxy is ...

Observations from the European satellite Gaia allow for the refutation of a controversial alternative theory and support the presence of an invisible component constituting the majority of the ...

Andreea Font does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

Annie Murphy Paul is the author of the forthcoming book Brilliant: The New Science of Smart. Many of science’s most important breakthroughs, from the discovery of microorganisms to the theory of ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Using a highly coherent positronium beam, the researchers observed clear diffraction patterns after transmission through a graphene film, confirming its wave-like behavior. One of the discoveries that ...

One of our big achievements in cosmology over the 20th century was auditing the universe. We discovered that 25% of the universe is visible and 75% of it is not but of that 75%, we couldn't get any ...