News about PaperPanda, Open Access, and Research
On 4 March 2022, a lonely, spent rocket booster will smack into the surface of the Moon at nearly 6,000 mph (9,656 km/h). Once the dust has settled, NASA’s Lunar Reconnaissance Orbiter will move into position to get an up-close view of the smoldering crater and hopefully shed some light on the mysterious physics of … Read more
Gazing at the night sky can evoke a sense of wonder regarding humanity’s place in the Universe. But that’s not all it can evoke. If you’re knowledgeable about asteroid strikes like the one that wiped out the dinosaurs, then even a fleeting meteorite can nudge aside your enjoyable sense of wonder. What if? Luckily, … Read more
On March 4 a four-metric-ton spent rocket stage will end its uncontrolled, 7.5-year voyage through space with a flourish: it will slam into the far side of the moon, close to the 570-kilometer-wide crater Hertzsprung, at about 9,300 kilometers per hour, creating a modest crater of its own. Earth is no stranger to space junk … Read more
A crescent-shaped crater in Northeast China holds the record as the largest impact crater on Earth that formed in the last 100,000 years. Prior to 2020, the only other impact crater ever discovered in China was found in Xiuyan county of the coastal province of Liaoning, according to a statement from the NASA Earth Observatory. … Read more
How we plan neighborhoods can shape the health of entire communities. When more than half the world now lives in urban areas, it’s more important than ever to design streets and parks conducive to walking, running, and cycling. A review of large, population-based studies describes numerous ways walkable, activity-friendly cities are linked to improved … Read more
A meteor that exploded in the sky over Chelyabinsk, Russia in 2013 could have also been somehow involved in the giant impact that formed the Moon. This tantalizing finding comes thanks to a new way of dating collisions between rocks in space, based on microscopic analysis of minerals within meteorites. Although further investigation is warranted, … Read more
The Chicxulub asteroid that ended the reign of the dinosaurs is one of the most momentous impact disasters in Earth’s history, and scientists have now identified the time of year when this deadly event took place. New evidence suggests the asteroid hit in the spring for the Northern Hemisphere, which would be fall (or autumn) … Read more
China’s Yutu-2 mission has made another fascinating discovery on the far side of the Moon. Glistening amid the dry, gray dust, the rover’s panoramic camera picked out two small intact spheres of translucent glass. Such spherules can record information about the Moon’s history, including the composition of its mantle and impact events. Yutu-2 was … Read more
Nothing on Earth can live without water. The origin of water on Earth, therefore, is the origin of life in the Solar System (and the Universe) as we know it. Figuring out where and how our world obtained its water might be key to finding life on other worlds, but the truth is we don’t … Read more
Astronomy and anthropology have blended to help determine what might have triggered the decline of a major North American society 1,600 years ago. A vibrant culture lived in the Ohio Valley from about 200 BCE to 300 CE. These people were the ancestors of many modern Native American tribes, such as the Haudenosaunee (Iroquois) and … Read more