Month: December 2018
LIGO and VIRGO announce four new gravitational-wave detections
Counting all the photons in the universe (spoiler alert: it’s a big number)
NASA thrilled InSight landed on flat, rock-free ‘sandbox’ on Mars
Hubble spots thousands of globular clusters in Coma galaxy group
See Mars get very close to Neptune at dusk on 7 December
Observers in the British Isles looking due south close to 6pm GMT on Friday, 7 December will find magnitude +0.1 planet Mars about 30 degress, or a span and a half of an outstretched hand at arm’s length, above the horizon. What you won’t see unless you have binoculars or a small telescope is that magnitude +7.9 outermost planet Neptune lies just one-tenth of a degree from the Red Planet.