PostsCommentsPayoutspfwaus (50)in STEMGeeks • 3 years agoRS Ophiuchi – A Recurrent Nova OutburstIn the early days of August 2021 the star RS Ophiuchi (abbreviated RS Oph) erupted in the evening sky. At maximum brightness RS Oph reached magnitude 4.5, bringing it within…pfwaus (50)in STEMGeeks • 4 years agoCrepuscular and Anti-Crepuscular Rays - Sky Colours and SunraysWhat is there not to like about twilight? It is that wonderful time of day when we see the transition between day and night and, if the conditions are just right, nature can…pfwaus (50)in STEMGeeks • 4 years agoReflections on Planetary Conjunctions and ShadowsThe Great Conjunction of the planets Jupiter and Saturn that occurred on December 21, 2020 has now passed and seemingly already forgotten by most as our often fast-paced daily…pfwaus (50)in STEMGeeks • 4 years agoOn Sunlight and Sky ColoursWe all love a clear blue sky. There is something uplifting in a blue sky that raises the human spirit and awakens our senses as we gaze at the vastness of the sky and dream of…pfwaus (50)in STEMGeeks • 4 years agoThe Great Conjunction of 2020 – A Meeting of the Gas GiantsAs we look towards the west during twilight and into the early evening hours we see the planets Jupiter and Saturn edging ever closer together towards what has been dubbed the…pfwaus (50)in STEMGeeks • 4 years agoAG Carinae (AG Car) - Things That Go Bump In The NightWe are so fortunate that the little speck of galactic dust we all call home – our Earth – orbits around a somewhat boring little star – our Sun – that does pretty much nothing.…