Stonehenge a solar calendar? & Underwater robots uncovered a 100-year-old shipwreck & Artemis inches closer to its first launch

 


Is Stonehenge a solar calendar?


For centuries, Stonehenge has been a source of fascination and mystery, and numerous theories have been offered regarding its construction and purpose. A recent analysis suggests that we may now finally have an answer. 


An archaeologist from Bournemouth University named Professor Timothy D-A R V I- L suggests that Stonehenge served as a solar calendar, with sections of the structure corresponding to days or weeks. 



The ancient calendar has a slightly different structure than what we might know today. Each stone represents a single day in a month, which is divided into three weeks of ten days each. According to Bournemouth University, this straightforward setup was adequate for day-to-day tracking; however, they had to make a few adjustments to align it with the Sun's movements. 


Stones to track an additional day every four years, accounting for the leap year, and a brief, additional "month" with only five days were added. As a result, the same pair of stones frame the winter and summer solstices each year. The neolithic Europeans would have been able to use this as a reliable frame of reference to rectify any errors they made when tracking the days of the year. 


Stones to track an additional day every four years, accounting for the leap year, and a brief, additional "month" with only five days were added. As a result, the same pair of stones frame the winter and summer solstices each year. The neolithic Europeans would have been able to use this as a reliable frame of reference to rectify any errors they made when tracking the days of the year


Underwater robots uncovered a 100-year-old shipwreck


In 1915, the boat Perseverance was on an expedition across Antarctica when it disappeared into the inky profundities of the Weddell Ocean. Fortunately, all 28 members of the crew escaped the sinking.  Notwithstanding knowing around where the boat went down, it remained uncovered for over 100 years, as of not long ago. 


Due in part to the less-than-ideal conditions in Antarctic waters, finding the ship was a huge challenge. Sea ice covers a lot of the icy ocean water, making it impossible for explorers to use traditional methods of investigation. It appears to be that finding the indented remnants of the Perseverance needed to trust that innovation will be capable. 


Endurance22, the salvage team, rode out on the S-A. A-G L H-A S II to a location where they thought they might locate the ship. Once they got there, they set up autonomous underwater robots called S-A B-E R T O T H S. These are used lasers, sonar, and cameras to scan the ocean floor and record anything they found. Also, locate something they did. 


According to Endurance22, the Sabertooths built a 3D model of the ship and the nearby debris once the wreck was discovered


Artemis inches closer to its first launch



The most well-known era of human spaceflight was marked by the Apollo missions, which first sent humans to the lunar surface in the late 1960s and early 1970s. NASA intends to make a comeback in December 2022, 50 years after the last time humans set foot on another planet. 


The initial goal of the Artemis missions, named after Apollo's twin sister in Greek mythology, was to bring boots back to the Moon's surface by 2024; however, this deadline has since been extended. Nonetheless, the program is moving forward, and the first mission is imminent. 


NASA's new Space Launch System (SLS) will carry the Orion Spacecraft around the Moon in an uncrewed test mission called Artemis I. Before the craft returns to its home base, the entire mission will last between four and six weeks. According to NASA, the primary goals are to test the spacecraft and launch system, as well as guarantee a safe splashdown and reentry. The launch is scheduled for the middle of 2022. 


NASA released a one-minute trailer to celebrate the upcoming mission, stating that Artemis would soon roll to the launchpad. NASA fulfilled that promise on March 17, 2022.  According to Gizmodo, the SLS, which was mounted on the Crawler-Transporter 2 (CT-2), moved slowly from the Vehicle Assembly Building to its launch position at Launch Pad 39B at Kennedy Space Center, traveling less than one mile per hour

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