AI can reliably spot molecules on exoplanets – and might one day even discover new laws of physics

Kai Hou (Gordon) Yip, UCL and Quentin Changeat, UCL Do you know what the Earth’s atmosphere is made of? You’d probably remember it’s oxygen, and maybe nitrogen. And with a little help from Google you can easily reach a more … Continue reading AI can reliably spot molecules on exoplanets – and might one day even discover new laws of physics

A new species of early human? Why we should be cautious about new fossil footprint findings

Matthew Robert Bennett, Bournemouth University and Sally Christine Reynolds, Bournemouth University A collection of fossil footprints at Laetoli in Northern Tanzania, preserved in volcanic ash and dated to 3.66 million years ago, are still yielding surprises almost 45 years after … Continue reading A new species of early human? Why we should be cautious about new fossil footprint findings

Invasive species are threatening Antarctica’s fragile ecosystems as human activity grows and the world warms

Dana M Bergstrom, University of Wollongong and Shavawn Donoghue, University of Tasmania We tend to think Antarctica is isolated and far away – biologically speaking, this is true. But the continent is busier than you probably imagine, with many national … Continue reading Invasive species are threatening Antarctica’s fragile ecosystems as human activity grows and the world warms

Non-Classified Earth Propulsion Systems

    Armadillo Aerospace‘s quad rocket vehicle showing visible banding (shock diamonds) in the exhaust plume from its propulsion system Propulsion is a means of creating force leading to movement. A propulsion system has a source of mechanical power (some type of engine or motor, muscles), and some means of using this power to generate force, such as wheel and axles, propellers, apropulsive nozzle, wings, fins or legs. Other components such as clutches, gearboxes and so forth may be needed to connect the power source to the force generating component. The term propulsion is derived from two Latin words: pro meaning before or forwards and pellere meaning to drive.   Vehicular propulsion Air propulsion Main article: Powered aircraft A turboprop-engined Tupolev Tu-95 An aircraft propulsion … Continue reading Non-Classified Earth Propulsion Systems