The universe is expanding, but astronomers still cannot agree on exactly how fast. That mismatch, known as the Hubble tension ...
Scientists are testing a novel way to measure cosmic expansion using time delays in gravitationally lensed quasars. Their ...
R esearchers have calculated one of the most precise estimates for the expansion rate of the universe today, and it turns out ...
A Hubble Space Telescope study takes a close look at the dwarf galaxies surrounding Andromeda. Surrounding the Andromeda galaxy, three dozen tiny galaxies aren't behaving the way scientists expected.
This NASA/ESA Hubble Space Telescope image features the spiral galaxy NGC 4535, which is situated about 50 million ...
The Andromeda galaxy helped Edwin Hubble settle a great debate in astronomy. Stocktrek Images via Getty Images A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known ...
A new image from the Hubble Space Telescope shows a small dwarf galaxy called IC 3430 that’s located 45 million light-years away. This galaxy is classified as both a dwarf galaxy, because of its small ...
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What is Hubble and how does it work?

The Hubble Space Telescope has been quietly orbiting Earth for decades, but it’s still one of the most valuable tools […] ...
The spiral galaxy NGC 3596 is on display in this NASA/ESA Hubble Space Telescope Picture of the Week, which incorporates six different wavelengths of light. ESA/Hubble & NASA, D. Thilker You might ...
NASA’s Hubble Space Telescope has broken the distance limit for galaxies and uncovered a primordial population of compact and ultra-blue galaxies that have never been seen before. Garth Illingworth, ...
A Hubble Space Telescope study takes a close look at the dwarf galaxies surrounding Andromeda. Credit: NASA / ESA / J. Dalcanton / B.F. Williams / L.C. Johnson / PHAT team / R. Gendler Surrounding the ...