That’s an observation, made around a decade ago, that the universe seems to be expanding faster than it should be according to cosmologists’ understanding of its earliest days. Now, two years of James ...

Well, it's something called the "Hubble tension," and it's a dispute between observational astronomers and theoretical cosmologists about who's been wrong about how fast the universe is expanding.

NASA's Goddard Space Flight Center Astronomers have long understood that the universe is expanding—in other words, the space in between cosmic objects that aren’t bound by gravity is getting ...

The expansion of the universe is, in some ways, similar. But this analogy gets one thing wrong – while the dough expands into the baking pan, the universe doesn’t have anything to expand into.

Data from NASA’s James Webb Telescope confirmed earlier findings that the universe is expanding more rapidly than we previously believed. Why? That’s what scientists are trying to find out.

What is the universe expanding into if it’s already infinite? – Mael, age 10, Missoula, Montana When you bake a loaf of bread or a batch of muffins, you put the dough into a pan. As the dough ...

The bubble's size is not determined by the range ... crucial phase in the Big Bang narrative that launched the universe onto its expansion timeline. Alan Guth, a theoretical physicist at MIT ...

What is the universe expanding into if it’s already infinite? – Mael, age 10, Missoula, Montana When you bake a loaf of bread or a batch of muffins, you put the dough into a pan. As the dough bakes in ...