collisions

Drones that avoid and withstand hefty collisions are in development

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Two teams of engineers have taken separate approaches to enable drones to carry out research or rescue operations with a reduced risk of crashing Technology 9 March 2022 By Alex Wilkins The RMF-Owl is designed to be collision-tolerant for subterranean exploration De Petris et al. Prototype drones capable of navigating dangerous and unpredictable environments without … Read more

The Chelyabinsk Meteorite May Have Been Involved in The Smash That Formed Our Moon

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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

Avoiding satellite collisions: NOAA unveils prototype warning system

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A new collision-warning system could help satellite operators sleep a little easier. The prototype system, developed by the U.S. National Oceanic and Atmospheric Administration (NOAA), is designed to alert operators when their spacecraft may be on a collision course with another object. That’s a real and growing concern, given how crowded Earth orbit is becoming. … Read more

Milky Way shakes: The cosmic collisions that made our galaxy

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By Thomas Lewton A galaxy passes through other galaxies in a group known as Stephan’s quintet X-ray (NASA/CXC/CfA/E.O’Sullivan); Optical (Canada-France-Hawaii-Te​lescope/Coelum) HUMANS have always been captivated by the Milky Way. To the ancient Greeks, it was a squirt of breast milk, while the Mayan farmers of Mesoamerica saw it as a growing maize stalk. Today, astronomers … Read more