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L’expertise universitaire, l’exigence journalistique
Articles sur Space
Affichage de 461 à 480 de 750 articles
Our brain cells do look a lot like a map of the universe – but that doesn’t mean they’re the same thing.
The career arc of Nichelle Nichols – the first black woman to have a continuing co-starring role on TV – shows how diverse casting can have as much of an impact off the screen as it does on it.
“Sometimes I’ve believed as many as six impossible things before breakfast.” To understand the universe, we need more Mad Hatter mathematicians.
Anish Kapoor made “Cloud Gate”, a giant bean-shaped mirror in Chicago. Visitors play with the light in the city and its surroundings, where our future lays.
We are in the Milky Way. If you travelled on an extremely fast spaceship for more than two million years, you would reach our neighbour, the Andromeda galaxy. All other galaxies are even further away.
The moon is our closest neighbour and our best hope for building capacity to explore space.
Space mining has the potential to provide a greater supply of resources either for being exploited locally for construction or being sent back to earth.
A new name on a few military badges doesn’t imply an escalating arms race.
Those who speak of the inevitability of war in space will fuel a race to the bottom, and see even more energy towards an arms race in space.
The blood moon myths are many and varied, but, at the end of the day, it’s just an eclipse.
Jeff Bezos plans to charge US$200,000-300,000 for a trip to outer space. And it’s going to cost him an astronomical amount of money.
The pull created by a black hole is so strong that if you get too close to one – even if you are travelling away from it at the fastest speed it is possible to go – you will never be able escape.
A wormhole is like a tunnel connecting two places in space. They would be incredibly useful and are great for science-fiction stories.
The problem is we haven’t found any evidence of them existing.
An astronomer suggests an idea to piggyback on the ambitious Breakthrough Starshot project that aims to send nano spacecraft to Alpha Centauri at a major fraction of the speed of light.
Trunp’s new policy could lead to the militarisation of outer space and the beginning of a new space arms race.
To answer this tricky question, we have to look back in time to when the Earth was born, 4.5 billion years ago.
Will new communications licensing costs make small satellites so expensive that they can’t be used for student education?
Pretty much as soon as we understood what galaxies were, we realised they are all moving away from each other. And the ones that are further away are moving faster. In short, the universe is expanding.
With a little bit of knowledge and a few pieces of equipment you too can look at the night sky and see it as a cosmologist does.
Les contributeurs les plus fréquents
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Professor of Planetary and Space Sciences, The Open University
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University Distinguished Professor of Astronomy, University of Arizona
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Professor (Astrophysics), University of Southern Queensland
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Associate Professor in Archaeology and Space Studies, Flinders University
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Professor of Strategy and Security Studies, Air University
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Emeritus Professor of International Law, Western Sydney University
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Associate Professor in Astronomy, Monash University
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Senior Lecturer in Physics, Nottingham Trent University
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Reader in Astrophysics, Keele University
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Sterrenkenner, History & Philosophy of Science, The University of Melbourne
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Lecturer in Astronomy, Nottingham Trent University
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Andrew Dempster est un·e ami·e de La Conversation
Director, Australian Centre for Space Engineering Research; Professor, School of Electrical Engineering and Telecommunications, UNSW Sydney
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Space Plasma Physicist, Imperial College London
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Associate Professor of International Affairs, Georgia Institute of Technology
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Professor of Hypersonic Aerodynamics, The University of Queensland
