Astronomers have discovered a distant quasar illuminating a vast nebula of diffuse gas, revealing for the first time part of the network of filaments thought to connect galaxies in a cosmic web. Researchers at the University of California, Santa Cruz, led the study, published January 19 in Nature.
ESA's Herschel Space Observatory has discovered a giant, galaxy-filled filament connecting two clusters of galaxies.
Is this a picture of a Death Star-type UFO refueling on the surface of the sun? Well, no.
A large sunspot has erupted, sending a coronal mass ejection hurtling towards Earth.