Astronomers are closing in on a result so statistically secure that, in their language, it borders on certainty: a 99.9999999 ...

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

A new set of precision distance measurements made with an international collection of radio telescopes have greatly increased the likelihood that theorists need to revise the “standard model” that ...

The question of whether the cosmos goes on forever is no longer just a late night thought experiment, it is a live research ...

A team of astronomers using a variety of ground and space-based telescopes including the W. M. Keck Observatory on Maunakea, ...

For much of the twentieth century, scientists expected the expanding universe to slow over time. The opposite turned out to ...

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

If you were to go as far out into space as you can imagine, what would you encounter? Would there be a limit to how far you could go, or could you travel a limitless distance? Would you eventually ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. The farthest type Ia supernova, our most distant "standard candle" for ...

A cosmic measurement technique independent of all others adds strong evidence pointing to a problem with the current theoretical model describing the composition and evolution of the Universe. A new ...