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!
Today’s guest post explores a galaxy whose mysterious clump is puzzling astronomers who are trying to pinpoint its origin.
Gravitational lensing can bend gravitational waves too! Do any of the recent LIGO-Virgo detections show evidence of lensing? Find out…
In today’s paper, we learn how overlapping galaxies affect weak lensing measurements that the LSST will make.
In today’s paper, we learn how to search for strong gravitational lenses in the cosmic haystack of galaxies