Heads up: Iceland has been monitoring #volcano unrest at #Reykjanes Peninsula. #Aviation color code orange due to quakes & indications of shallow magma dike. If an eruption occurs, ash hazard may affect North Atlantic air #travel. en.vedur.is/weather/aviati… #geology #weather "Suspense in Iceland as dormant volcanic zone shows signs of life" by @physorg_com - volcanologists say a #Reykjanes eruption would likely be more lava than ash; not expecting repeat of 2010 Eyjafjallajokull #aviation #travel disruption phys.org/news/2021-03-s… #volcano #geology

Feb 1, 2003 - I went to watch the Space Shuttle Columbia re-entry over Northern California before dawn 17 years ago today. Unfortunately I became an eyewitness to disaster. #ColumbiaDisaster #STS107 #NASA #space #history #TDIH 1/20 I had seen 2 pre-dawn shuttle re-entries before. They were bright like a highway flare as the orbiter crossed the sky in less than 10 minutes. Watched from my backyard in San Jose under clear skies those times. #ColumbiaDisaster #STS107 #NASA #space #history 2/20

“Earthrise: A Video Reconstruction” is #NASA #astronomy picture of the day by @apod/@USRAedu apod.nasa.gov/apod/ap181223.… Apollo 8’s iconic photo “Earthrise” was taken 50 years ago; 4K HD animation shows astronauts’ view using NASA LRO data of lunar surface “Earthrise in 4K” is a 50th anniversary commemoration of the 1968 #Earthrise image during Apollo 8, and description how the rendering was made with NASA LRO imagery/data taken since 2009, by @NASA/@NASAGoddard/@USRAedu #astronomy #Apollo50 #Apollo8 #Moon