The universe is expanding. That much is clearer. But it’s less clear whether this expansion is accelerating or slowing down. At the heart of this upheaval lies the cosmic yardstick astronomers have ...

Last time I wrote about new data that overturns the standard cosmological model. Before anyone starts dusting off their ...

Our solar system is speeding through space much faster than previously thought, challenging the fundamental assumptions that ...

Nobel laureate who mapped temperature variations in the cosmic microwave background.

Dark matter may be invisible, but scientists are getting closer to understanding whether it follows the same rules as ...