Universe Today Home Videos Podcast Newsletter Join the Club RSS Feed Magnets Could Become the Next Generation of Gravitational Wave Detectors By Mark Thompson July 12, 2025 at 9:38 PM UTC Physics Artist's impression of neutron stars merging , producing gravitational waves Credit University of Warwick Mark Garlick Gravitational waves are tiny distortions in spacetime itself , created when massive objects like black holes or neutron stars collide . These waves stretch and compress space as they pass through , but the effect is incredibly subtle , far smaller than the width of a proton . When Einstein predicted gravitational waves over a century ago , he likely never imagined that magnets could one day detect these gravitational ripples . Yet new research led by Valerie Domcke from CERN
Close encounters with massive objects can alter the orbits of planets around their stars. Stellar flybys can change planetary orbits, and may be responsible for some of the rogue or free-floating planets astronomers have discovered. But stars aren't the only massive objects out there, and new research suggests that primordial black holes may alter the orbits of exoplanets.
The IceCube neutrino detector has allowed researchers to resolve a debate about what types of particles make up ultra-high-energy cosmic rays – but much remains unknown about these rare events