It’s always amazing, and more than a little humbling, when the universe reminds us that our “common sense” is provincial, ...

New measurements using gravitational lensing suggest the universe’s current expansion rate does not agree with signals from the early cosmos.

For over two decades, cosmologists have believed that the universe is expanding at an accelerating pace, driven by a mysterious force called dark energy. This assumption has shaped modern theories of ...

Physicists have improved the accuracy of a technique that uses variable stars to measure distances in the universe, providing a new figure for its expansion rate. When you purchase through links on ...

The universe is unimaginably vast. Even the nearest stars are incredibly far away. Our galaxy is just one of billions. Traveling vast cosmic distances requires immense energy. Key takeaways sponsored ...

Look up on a dark night and the stars seem scattered at random. Step back in scale, though, and the Universe looks nothing ...

NASA's James Webb Space Telescope has helped astronomers determine the distance to nearly 200 galaxies and galaxy clusters formed in the universe's early days. One of the first publicly released ...

There is an important and unresolved tension in cosmology regarding the rate at which the universe is expanding, and ...

The Universe is big, as Douglas Adams would say. The most distant light we can see is the cosmic microwave background (CMB), which has taken more than 13 billion years to reach us. This marks the edge ...

Space, as we all know, is big. In fact, it’s more than big; it’s vastly, hugely, mind-bogglingly big. But how big is that, exactly, and how do we go about assigning actual, quantifiable distances ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. In milliseconds, Google can serve up a fact that long eluded many of ...