Different measures of the rate of the Universe’s expansion give different results – and a new measurement technique only makes matters more complicated.
This cluster of galaxies, called Stephan’s Quintet, is a composite image produced from two cameras aboard the James Webb Space Telescope.
NASA/STScI
NASA released five new images from the James Webb Space Telescope, revealing incredible details of ancient galaxies, stars and the presence of water in the atmosphere of a distant planet.
Concept of a black hole acting as a lens on background light.
Dotted Yeti/Shutterstock
Such a mission could be developed soon, allowing astrophysicists to take selfies of the solar system and use the Sun’s gravity as a lens to peer deep into space.