The Hubble Tension: Expansion, Energy, and Unanswered Questions For the past few years, astrophysics has been shaking on its foundations thanks to contradictory measurements regarding the acceleration ...

The observable universe may be only the part of reality whose light has had time to reach us. Beyond that cosmic horizon ...

Cosmic expansion allows distant galaxies to move away faster than light, while still letting us see ancient light they ...

Add Yahoo as a preferred source to see more of our stories on Google. This NASA/ESA Hubble Space Telescope image features the spiral galaxy Messier 77, also known as the Squid Galaxy. Everything on ...

The universe might not be as you think. Until recently, the Lambda Cold Dark Matter model seemed to have a lock on cosmology. Like earlier Big Bang models, it supposes that the universe expanded from ...

The universe’s expansion makes cosmic distance far less intuitive than simply measuring how long light has traveled.

Forbes contributors publish independent expert analyses and insights. I cover aerospace, astronomy & hosted The Cosmic Controversy Podcast. Cosmic voids that stretch across millions even billions of ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Science’s best guess at how the universe came into being includes the Big Bang ...

Space. It's really, really big. How big is it? Well, according to astronomers, the observable universe is around 92 billion light-years in diameter, but that's all we can see (hence the word ...

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