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On Monday, June 19, 1865, enslaved African Americans in Texas learned of their freedom. That day of liberation became known as Juneteenth, when the Emancipation Proclamation was announced by Union troops in Galveston, Texas. On Thursday, June 17, 2021, President Joe Biden signed into law legislation making Juneteenth, “a federal holiday, recognizing th...
2021年06月18日 Devil Horns from a Ring of Fire Image Credit & Copyright: Madhup Rathi Explanation: Atmospheric refraction flattened the solar disk and distorted its appearance in this telescopic view of an Atlantic sunrise on June 10. From Belmar, New Jersey on the US east coast, the scene was recorded at New Moon during this season’s annular solar e...
In a series of flights between June 1-6, 2021, Stratodynamics Inc. launched its HiDRON stratospheric glider from a high-altitude balloon at Spaceport America in New Mexico. HiDRON carried technology supported by NASA’s Flight Opportunities program for the first time. The uncrewed HiDRON stratospheric glider from Stratodynamics is designed to release from a s...
2021年06月17日 NGC 6888: The Crescent Nebula Image Credit & Copyright: Joe Navara, Glenn Clouder, Russell Discombe Explanation: NGC 6888, also known as the Crescent Nebula, is a about 25 light-years across blown by winds from its central, bright, massive star. A triumvirate of astroimagers ( Joe, Glenn, Russell) created this sharp portrait of the cosmic bu...
When NASA’s Orion spacecraft launches aboard the powerful Space Launch System rocket for the spacecraft’s first mission around the Moon later this year, a suited manikin will be aboard outfitted with sensors to provide data on what crew members may experience in flight. As part of the uncrewed Artemis I flight test, NASA is seeking to learn how best to prote...
Teams with NASA’s Exploration Ground Systems and contractor Jacobs lower the Space Launch System (SLS) core stage – the largest part of the rocket – onto the mobile launcher, in between the twin solid rocket boosters, inside High Bay 3 of the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida on June 12, 2021. The 188,000-pound core stage, w...
June 14 of each year is celebrated as Flag Day in the U.S. According to the Library of Congress’s online site, “on May 30, 1916, President Woodrow Wilson issued a presidential proclamation establishing a national Flag Day on June 14. The day commemorates the adoption of the Stars and Stripes as the official flag of the United States.” All N...
2021年06月16日 Scorpius Enhanced Image Credit & Copyright: Stefan Lenz Explanation: If Scorpius looked this good to the unaided eye, humans might remember it better. Scorpius more typically appears as a few bright stars in a well-known but rarely pointed out zodiacal constellation. To get a spectacular image like this, though, one needs a good camera, a da...
2021年06月15日 Zhurong: New Rover on Mars Image Credit: China National Space Administration Explanation: There’s a new rover on Mars. In mid-May, China’s Tianwen-1 mission delivered the Zhurong rover onto the red planet. As Mars means Planet of Fire in Chinese, the Zhurong rover’s name means, roughly, God of Fire in Chinese mythology. Zhurong ...
2021年06月14日 Ganymede from Juno Image Credit: NASA/JPL-Caltech/SwRI/MSSS; Processing & License: Kevin M. Gill; Explanation: What does the largest moon in the Solar System look like? Jupiter’s moon Ganymede, larger than even Mercury and Pluto, has an icy surface speckled with bright young craters overlying a mixture of older, darker, more cratered t...