For decades,meals for astronauts during their trips off planet have mostly consisted of prepackaged dehydrated or freeze-dried food,occasionally garnished with terrarium-grown lettuce(Fig.1)[1,2].With longer-term miss...
On 6 October 2023,Amazon(Seattle,WA,USA)launched two prototype satellites into low-Earth orbit[1],the inaugural orbiters of Project Kuiper,a constellation of 3236 satellites that will work together to eventually deliv...
The heat pump,an old device dating back to the early 1850s[1],has captured new attention for its potential to help meet climate change goals.Driven in large part by legislated incentives and bans on fossil-fuel heatin...
In March 2023,a converted bomber took off from Eielson Air Force Base in Alaska,USA,carrying a payload of delicate scientific instruments(Fig.1).Operated by the US National Oceanic and Atmospheric Administration(NOAA)...
In 2023, oceanographers will deploy hundreds of free-drifting robotic floats equipped with sets of custom-built sensors engineered to measure multiple biogeochemical (BGC) characteristics of the world’s oceans, inclu...
Engineering is an integrated activity in which humans create or change the characters of things by using science and technology and employing resources in an organized manner in order to survive,develop,and achieve sp...
1.Introduction to the challenges of water security Over the past two to three decades,international concern about global water security has been increasing,along with a need for a more holistic approach to deliver sus...
From 31 October to 13 November 2021,in an impassioned and frequently tense gathering,the 26th United Nations Climate Change Conference of the Parties,known as COP26,convened in Glasgow,Scotland.While participants made...
the National Natural Science Foundation of China(51809213).
1.Introduction There is a significant gap between atmospheric space and undersea space for wireless radio transmission.The interface between air and seawater is a barrier to prevent radio wave transmission across the ...
On 19 April 2021,its twin rotors stirring the wispy Martian atmosphere,Ingenuity,the National Aeronautics and Space Administration(NASA)miniature helicopter,lifted off the surface of the Red Planet[1].Built by NASA’s...