Hubble constant
Red Giants Offer a New Way to Measure Distance in the Universe
For nearly three decades now, it's been clear that the expansion of the Universe is speeding up. Some unknown quantity,…
Webb Continues to Confirm That Universe is Behaving Strangely
Over a century ago, astronomers Edwin Hubble and Georges Lemaitre independently discovered that the Universe was expanding. Since then, scientists…
Webb Sees a Supernova Go Off in a Gravitationally Lensed Galaxy – for the Second Time
Nature, in its infinite inventiveness, provides natural astronomical lenses that allow us to see objects beyond the normal reach of…
If Our Part of the Universe is Less Dense, Would That Explain the Hubble Tension?
In the 1920s, Edwin Hubble and Georges Lemaitre made a startling discovery that forever changed our perception of the Universe.…
Colliding Neutron Stars Could Help Measure the Expansion of the Universe
A new study presents a novel and independent method for measuring cosmic expansion using kilonova
Astronomers Have a New Way to Measure the Expansion of the Universe
A new method of measuring cosmic expansion uses multiple observations of a supernova in a lensed galaxy.
Could a Dark Energy Phase Change Relieve the Hubble Tension?
A new study suggests that the Hubble Constant could be resolved by the presence of a "New Early Dark Energy"…
“Early Dark Energy” Could Explain the Crisis in Cosmology
A new study considers how the presence of Early Dark Energy could help resolve one of the biggest cosmological mysteries…
Astronomers Chart the Influence of Dark Matter and Dark Energy on the Universe by Measuring Over 1,500 Supernovae
Two decades of supernova observations still leave big mysteries unsolved.
Supernovae Were Discovered in all These Galaxies
The Hubble space telescope has provided some of the most spectacular astronomical pictures ever taken. Some of them have even…