May 24, 1543: The death of Nicolaus Copernicus

Born Feb. 19, 1473, in Poland, Nicolaus Copernicus was raised by his uncle, Bishop Lucas Watzenrode, who ensured he was well educated as he grew up. The education continued at the University of Cracow, where he studied painting and math; the University of Bologna, where he studied canon law; the University of Padua, where heContinue reading “May 24, 1543: The death of Nicolaus Copernicus” The post May 24, 1543: The death of Nicolaus Copernicus appeared Continue ReadingMay 24, 1543: The death of Nicolaus Copernicus

The Sky Today on Sunday, May 24: Egeria slides on by

Looking for a sky event this week? Check out our full Sky This Week column.  May 23: View Vallis Alpes Moving through vast Virgo, 11th-magnitude asteroid 13 Egeria is passing near some stationary background stars tonight, offering an excellent chance to chart its motion over the course of a few hours.  You can begin looking for theContinue reading “The Sky Today on Sunday, May 24: Egeria slides on by” The post The Sky Today on Sunday, May Continue ReadingThe Sky Today on Sunday, May 24: Egeria slides on by

SpaceX’s Starship V3—still a work in progress—mostly successful on first flight

SpaceX launched the first test flight of its upgraded Starship rocket and Super Heavy booster Friday, with mostly positive results. The powerful rocket, propelled by 33 methane-fueled main engines, climbed away from SpaceX’s Starbase launch facility in South Texas at 5:30 pm CDT (6:30 pm EDT; 22:30 UTC) Friday. Within a few seconds, the 408-foot-tall (124-meter) rocket, the largest ever built, cleared the launch tower and turned onto an eastward heading over the Gulf of Mexico. Starship splashed down on target in the Indian Ocean a little more than an hour later to conclude the first flight of the latest Continue ReadingSpaceX’s Starship V3—still a work in progress—mostly successful on first flight

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Uncovering the science of aurorae

The shimmering curtains of the northern and southern lights — aurora borealis and aurora australis, respectively — loom large in our imaginations. These shifting apparitions provide a cosmic connection not only to beauty and mystery, but also to our physical world.  Unlike the rhythms of the Sun, Moon, and stars, aurorae appear to be capriciousContinue reading “Uncovering the science of aurorae” The post Uncovering the science of aurorae appeared first on Astronomy Magazine. Continue ReadingUncovering the science of aurorae

May 23, 1967: A solar flare jams missile detectors

On May 23, 1967, a highly active sunspot region, McMath Region 8818, produced a series of solar flares. The events were massive, including a rare white-light flare and one of the largest solar radio bursts ever recorded – so large, in fact, that they jammed the U.S.’s Ballistic Missile Early Warning System. The system wasContinue reading “May 23, 1967: A solar flare jams missile detectors” The post May 23, 1967: A solar flare jams missile Continue ReadingMay 23, 1967: A solar flare jams missile detectors

The Sky Today on Saturday, May 23: View Vallis Alpes

Looking for a sky event this week? Check out our full Sky This Week column.  May 22: Busy moons around Jupiter The Moon passes 0.08° south of Regulus at 3 A.M. EDT. A few hours later, First Quarter Moon occurs at 7:11 A.M. EDT. First Quarter Moon offers some great targets for lunar observers. Plus, the greatContinue reading “The Sky Today on Saturday, May 23: View Vallis Alpes” The post The Sky Today on Saturday, May 23: Continue ReadingThe Sky Today on Saturday, May 23: View Vallis Alpes

Launch preview: SpaceX tries again for first launch of its Starship Version 3 rocket

SpaceX scrubbed the planned launch of its Starship-Super Heavy rocket on the Flight 12 mission on May 21, 2026. Image: Spaceflight Now Update May 21, 8:03 p.m. EDT (0003 UTC): SpaceX scrubbed the mission after dipping in and out of multiple holds at T-minus 40 seconds. SpaceX stood down from its first attempt to launch the third generation of its Starship rocket Thursday, May 21, from its company town in southern Texas, called Starbase. The Continue ReadingLaunch preview: SpaceX tries again for first launch of its Starship Version 3 rocket

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