Cosmic beasts and where to find them Two giant radio galaxies have been discovered with South Africa’s powerful MeerKAT telescope. These galaxies are thought to be amongst the largest single objects in the Universe. The […]
Black holes: Cosmic signal rattles Earth after 7 billion years Imagine the energy of eight Suns released in an instant. This is the gravitational “shockwave” that spread out from the biggest merger yet observed between […]
Astronomers Spot Elusive 50 Million-Light-Year-Long Thread Tied to Cosmic Web At the very largest scale, the Universe consists of a “cosmic web” made of enormous, tenuous filaments of gas stretching between gigantic clumps of matter. […]
Are primordial magnetic field theories getting in a twist? In cosmic voids where the density of galaxies is far lower than standard, astronomers have observed weak magnetic fields that may provide a window into the […]
What is the hidden matter in the cosmic web? Astrophysicists consider that around 40% of the ordinary matter that makes up stars, planets and galaxies remains undetected, concealed in the form of a hot gas […]
‘Echo mapping’ in faraway galaxies could measure vast cosmic distances When you look up at the night sky, how do you know whether the specks of light that you see are bright and far away, […]