Over the weekend, the Earth’s magnetic field was struck by a coronal mass ejection (CME). The CME — a vast bubble of solar plasma that had erupted from the sun on Jan. 19 — took longer than expected to travel through interplanetary space, but on Sunday it made contact.
Winter Solstice TODAY— the shortest and darkest day of the year
Skysurvey.org is the largest ever true color all-sky photograph. 5 kilopixel panorama of 37,440 exposures from 2 hemispheres. This is what you’d see if the Earth suddenly became transparent and the sky were 3000 times brighter. I love how strongly you can perceive the disc of the Milky Way; we’re at the outer edge so there’s a lot of stars between us and the core.