Space-time doesn’t exist — but it’s a useful framework for understanding our reality

By Daryl Janzen, Observatory Manager and Instructor, Astronomy, University of Saskatchewan

Whether space-time exists should neither be controversial nor even conceptually challenging, given the definitions of “space-time,” “events” and “instants.” The idea that space-time exists is no more viable than the outdated belief that the celestial sphere exists: both are observer-centred models that are powerful and convenient for describing the world, but neither represents reality itself.

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~	Detroit’s Gordie Howe bridge is poised to open as truck traffic between US-Canada slows – low-income residents are deciding whether to stay or go

~	2 newly launched NASA missions will help scientists understand the influence of the Sun, both from up close and afar

~	NASA will say goodbye to the International Space Station in 2030 − and welcome in the age of commercial space stations

~	Neuroscience finds musicians feel pain differently from the rest of us

~	Not enemies, but people: Why the world needs to rethink the language of war

~	Graduated, now what? Survey of young Africans shows degrees don’t always land them a job

~	Despite Google’s recent victory, a flurry of competition cases could still change how the tech giants do business

~	Watch out! Authorities in Turkey are on the lookout for obscenity

~	10 times stronger than fentanyl, nitazenes are the latest, deadly development in the synthetic opioid crisis

~	Hobbits of Flores evolved to be small by slowing down growth during childhood, new research on teeth and brain size suggests