The James Webb Space Telescope has notched another milestone, capturing a direct image of one of the coldest and oldest known exoplanets.
We don't know what dark matter is, but that doesn't stop astronomers from using it to their advantage. Dark matter is part of what makes gravitational lensing so effective. Astronomers expect the Roman Space Telescope to find 160,000 gravitational lenses, and dark matter makes a crucial contribution to these lenses.