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

An international team of astronomers using the (https://sites.krieger.jhu.edu/class/) (CLASS) (https://hub.jhu.edu/2025/06/11/telescopes-look-at-cosmic-dawn/) announced the first-ever detection of radiation from the cosmic microwave background (CMB) interacting

The early universe was shrouded in darkness. Just hundreds of millions of years after the Big Bang, a thick fog of hydrogen gas choked the cosmos, blocking light from traveling

Solar sails are space’s ultimate free ride, they get their propulsion from the Sun, so they don’t need to carry propellant, but they come with their own challenges. A sail