Dark energy is the term scientists use to describe the cause of the accelerated expansion of the universe. Find out how a new analysis provides its most precise measurement yet.
Pulsar and Neutron Star Offer Clues to Cosmic Enigmas
A pulsar and a neutron star with a huge size difference have been discovered in a binary star system. Find out why this could unlock the mysteries of the cosmos. (4:30 min reading time)
Measuring Dark Energy Just Got Way More Precise
Measuring dark energy has always relied on supernovas. Find out about a more accurate technique and how it sheds light on this and other mysteries. (4:30 read time)
Are We Inside A Hubble Bubble?
When we measure the rate at which the universe expands, our two answers don't match. One scientist says its because we're in a Hubble Bubble. Find out more. (4:00 min read)
Betelgeuse Dimming but Not Ready to Blow
Betelgeuse was dimming over the holidays, leading stargazers to speculate about a supernova. Find out why none of us will live to see it. (3:30 min read)
Where Do Heavy Metals Come From? (Not Ozzy Osborne!)
Learn what researchers have discovered about the origins of the heavy chemical elements thoughout the universe and here on earth.