Science

Astronomers have discerned the presence of a dwarf galaxy that may be made largely of dark matter, thanks to the light-bending effects of its hefty mass.

It sounds like the plot of a disaster movie: A nearby star explodes as a supernova, outshining the sun in the sky. The fleeting light show blows away Earth’s ozone […]

More than 99% of clinical trials for Alzheimer’s drugs have failed, leading many to wonder whether pharmaceutical companies have gone after the wrong targets. Now, research in mice points to […]

To map the roughly 1300 connections, or synapses, between the cells, researchers used an electron microscope to take millions of nanoscopic pictures from a speck of tissue not much bigger […]

Mysterious high-energy particles known as cosmic rays zip through space at a wide range of energies, some millions of times greater than those produced in the world’s most powerful atom […]

When do we decide it’s OK to tell a lie? Perhaps when we see people in positions of power doing the same. A new study finds that individuals are more […]

Thoroughly smashing a distance record set just last year, astronomers have discovered a galaxy that lies 13.4 billion light-years from Earth—and thus shone forth when the universe was less than […]

For most creatures, oxygen is life. But biology is complicated, and researchers hoping to treat diseases in which our cells’ energy-providing machinery is faulty now suggest the opposite may also […]

It’s one of the big mysteries of cell biology. Why do mitochondria—the oval-shaped structures that power our cells—have their own DNA, and why have they kept it when the cell […]