Also called M31—and our closest giant neighboring galaxy ... the most distant of which is more than a million light-years from Earth. That’s almost half the distance to Andromeda.

before it burned up in Earth's atmosphere on Nov. 1, 2024. After spotting M31-2014-DS1, the astronomers saw it dim from 2016 to 2019, with follow-up observations in 2023 showing that it had ...

He calculated M31’s distance as a prodigious 900,000 light years away ... Hubble’s results suggested the farther away a galaxy was, the faster it was moving away from Earth. Hubble got the lion’s ...

By the 1920's, M31 was clearly understood to be a grouping ... the Andromeda Nebula was over a million light years away from Earth. It was the largest distance ever measured, and its announcement ...

They also create cosmic rays that can reach Earth. This new research shows that we may not understand supernovae as well as we thought. The star in question is named M31-2014-DS1. Astronomers ...

Assembled from a total of 7,398 exposures taken over 411 individual pointings of the telescope, this image of our nearest major galactic neighbor, M31, is the largest Hubble mosaic to date.

He calculated M31’s distance as a prodigious 900,000 light ... the faster it was moving away from Earth. Hubble got the lion’s share of the credit for this discovery, but Lowell Observatory ...