Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight Center. Credit: NASA's Goddard Space Flight Center Producer & Director ...

Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight Center. Credit: NASA's Goddard Space Flight Center Producer & Director ...

For one, scientists observe a "cosmic fossil" called the cosmic microwave background (CMB). The first light that was free to ...

Our galaxy may reside in a billion-light-year-wide cosmic bubble that accelerates local expansion, potentially settling the ...

The Hubble telescope precisely measured the rate at which the universe is expanding by looking at relatively nearby galaxies, and in 2018 found a higher rate of 72.8 km/s/Mpc.

Are we living in a cosmic void? New theory suggests our galaxy sits in a giant hole warping the universe's expansion.

The universe seems to be expanding faster than it used to, meaning it's about a billion years younger than we thought, a new study by a Nobel Prize winner says.

Today’s rate of expansion of the universe is a figure known as the Hubble constant. This is measured in units of kilometres per second per megaparsec (km/s/Mpc), where a megaparsec (Mpc) is ...

"The discrepancy between the observed expansion rate of the universe and the predictions of the standard model suggests that our understanding of the universe may be incomplete," said Adam Riess ...

The universe's expansion rate, a figure called the Hubble constant, is measured in kilometers per second per megaparsec, a distance equal to 3.26 million light-years.

The universe's expansion rate, a figure called the Hubble constant, is measured in kilometers per second per megaparsec, a distance equal to 3.26 million light-years.