Hubble constant tension explained - 'Measuring the expansion rate of the universe'

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: James ...

How fast is the universe actually expanding? Ripples in spacetime could finally solve 'Hubble tension'

Using gravitational waves as a measure of the universe's rate of expansion could solve the biggest headache in physics, the ...

Black Hole Collisions May Finally Resolve the Hubble Tension

A subtle gravitational-wave “hum” from merging black holes may help settle the cosmic fight over how fast the universe is ...
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Hubble Space Telescope's 35th anniversary: See NASA's new out-of-this-world images

During its 35 years of orbiting the Earth, the Hubble Space Telescope has transmitted endless streams of magnificent images, confirmed the existence of "dark matter," and helped track a vagabond black ...