SciencefromBig Think1 week agoAsk Ethan: Is the Hubble tension the same thing as dark energy?Dark energy and the Hubble tension both stem from observations indicating the Universe's expansion has accelerated in recent cosmic history.
Sciencefromwww.scientificamerican.com3 weeks agoWarp Speed! How Some Galaxies Can Move Away from Us Faster Than LightNothing can move faster than light through space, but cosmic expansion can make distant galaxies recede from us faster than light.