Four-satellite Astranis launch signals shift toward scaled GEO deployments

SpaceX successfully launched four Astranis-built broadband spacecraft toward geostationary orbit Dec. 29, marking the first time a single commercial manufacturer has flown four of its own satellites on one mission to GEO. The post Four-satellite Astranis launch signals shift toward scaled GEO deployments appeared first on SpaceNews.

After 60 years of spaceflight patches, here are some of our favorites

The art of space mission patches is now more than six decades old, dating to the Vostok 6 mission in 1963 that carried Soviet cosmonaut Valentina Tereshkova into low-Earth orbit for nearly three days. The patch for the first female human spaceflight showcased a dove flying above the letters designating the Soviet Union, CCCP. That patch was not publicly revealed at the time, and the use of specially designed patches was employed only infrequently by subsequent Soviet missions. NASA’s first mission patch would not follow for two years, but the practice would prove more sticky for missions in the United Continue ReadingAfter 60 years of spaceflight patches, here are some of our favorites

Cooperation between two intruders moving side-by-side in granular media

In bird colonies, schools of fish and cycling pelotons, significant interactions occur between individuals through the surrounding fluid. These interactions are well understood in fluids such as air and water, but what happens when objects move through something like sand? It turns out that similar interactions occur in granular materials—things like soil or sand—and they play a crucial role in everyday contexts. Think of plows cutting through farmland, animals burrowing underground, roots pushing through soil, or even robots exploring the surface of Mars.

Astronomers discover an ultra-massive grand-design spiral galaxy

Using the James Webb Space Telescope (JWST), an international team of astronomers has detected a new grand-design spiral galaxy as part of the PANORAMIC survey. The newfound galaxy, named Zhúlóng, is extremely massive and appears to be the most distant spiral galaxy identified so far. The finding was detailed in a paper published December 17 on the pre-print server arXiv.