SciencefromBig Think2 weeks 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.
fromwww.scientificamerican.com3 weeks agoScienceWarp Speed! How Some Galaxies Can Move Away from Us Faster Than Light
fromwww.scientificamerican.com3 weeks agoScienceWarp Speed! How Some Galaxies Can Move Away from Us Faster Than Light
SciencefromBig Think1 month agoAsk Ethan: Where are we located relative to the Big Bang?Uniform redshift–distance relation in all directions shows cosmic expansion; directional redshift differences cannot locate a single spatial origin of the Big Bang.
SciencefromBig Think3 months agoWhat we've learned after 35 years of NASA's HubbleThe Hubble Space Telescope has revolutionized our understanding of the Universe since its launch in 1990.
SciencefromTheregister3 months agoDouble-detonation supernova may set universal candles alightDiscovery of evidence for double-detonated Type Ia supernova may explain abundance of luminous astronomical reference points.
SciencefromArs Technica3 months agoNew evidence that some supernovae may be a "double detonation"Type Ia supernovae may explode before reaching critical mass through small surface explosions, challenging conventional understanding.
