I’m Not Late, You’re Just Early: measuring the Hubble constant using time-delay cosmography
How can we use gravitational lensing to measure the expansion rate of the Universe?
How can we use gravitational lensing to measure the expansion rate of the Universe?
The cold spot is a strange feature in the CMB that has puzzled astronomers for years. Today’s authors use gravitational lensing to find at least a partial cause: A giant supervoid extending 1.8 billion light years!
Traces of magnified dust offer a requiem to early, dead galaxies that ran out of gas
One of the most important observations by the next generation of giant telescopes will be made by pointing towards the Supermassive Black Hole at the center of our galaxy.
Why is the Universe’s expansion accelerating? We have no idea! But, maybe fast radio bursts can provide some clues.
Step into the cosmic house of mirrors at this quasar party at dawn!