Crowds at the San Fermín festival in Pamplona during the famous bull run Migel/Shutterstock People in a very dense crowd move in small circular “orbits”, like charged particles moving in a magnetic field. The unexpected discovery may help lead to improved mathematical descriptions of dense crowds, which could help us …
Read More »Astronaut Thomas Stafford, commander of Apollo 10, has died at age 93
This Aug. 23, 1965 photo provided by NASA shows astronaut Thomas P. Stafford, near the NASA Motor Vessel Retriever in the Gulf of Mexico during training. Stafford, who commanded a dress rehearsal flight for the 1969 moon landing and the first U.S.-Soviet space linkup, died Monday, March 18, 2024. He …
Read More »Unlocking clearer views of our world’s water: A Landsat legacy
Locations of in situ data for four water parameters examined in this study. Credit: Journal of Remote Sensing (2024). DOI: 10.34133/remotesensing.0110 Satellite remote sensing is vital for monitoring marine and freshwater ecosystems, leveraging missions like SeaWiFS, MODIS, MERIS, Landsat, and Sentinel to track water parameters such as chlorophyll, sediment, and temperature. …
Read More »As Voyager 1’s mission draws to a close, one planetary scientist reflects on its legacy
Credit: Pixabay/CC0 Public Domain For nearly 50 years, NASA’s Voyager 1 mission has competed for the title of deep space’s little engine that could. Launched in 1977 along with its twin, Voyager 2, the spacecraft is now soaring more than 15 billion miles from Earth. On their journeys through the …
Read More »Hubble views dwarf galaxy LEDA 4216
This NASA/ESA Hubble Space Telescope image shows LEDA 42160, a galaxy about 52 million light-years from Earth in the constellation Virgo. The bright patches on LEDA 42160’s lower-right flank may be star-forming regions spurred on by ram pressure stripping. Credits: ESA/Hubble & NASA, M. Sun This NASA/ESA Hubble Space Telescope …
Read More »SpaceX is building a spy satellite network for US, news agency says
Credit: Pixabay/CC0 Public Domain Elon Musk’s SpaceX is building a network of hundreds of spy satellites under a classified contract with a U.S. intelligence agency, Reuters reported, citing five people familiar with the program. SpaceX’s Starshield business unit is building the network as part of a $1.8 billion contract signed …
Read More »The spring equinox is here. What does that mean?
Visitors hold their hands out to receive the sun’s energy as they celebrate the Spring equinox atop the Pyramid of the Sun in Teotihuacan, Mexico, Thursday, March 21, 2019. Spring gets its official start Tuesday, March 19, 2024, in the Northern Hemisphere. On the equinoxes, the Earth’s axis and orbit …
Read More »Danish chef to launch gourmet dining to stratosphere
Credit: Unsplash/CC0 Public Domain Danish chef Rasmus Munk wants to take high-end cuisine to the edge of space, with plans to serve up a stratospheric dining experience in 2025, his restaurant said Thursday. “The expedition will take place aboard Space Perspective Spaceship Neptune, the world’s first carbon-neutral spaceship,” Alchemist, the …
Read More »A 790,000 year-old asteroid impact could explain seafloor spherules
A 0.4-millimeter diameter iron-rich spherule. Credit: Avi Loeb/The Galileo Project Our solar system does not exist in isolation. It formed within a stellar nursery along with hundreds of sibling stars, and even today has the occasional interaction with interstellar objects such as ‘Oumuamua and Borisov. So it’s reasonable to presume …
Read More »What can we learn flying through the plumes at Enceladus?
Artist rendering showing an interior cross-section of the crust of Enceladus, which shows how hydrothermal activity may be causing the plumes of water at the moon’s surface. Credits: NASA-GSFC/SVS, NASA/JPL-Caltech/SwRI In the next decade, space agencies will expand the search for extraterrestrial life beyond Mars, where all of our astrobiology …
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