In the space beyond Earth's atmosphere, countries are focusing on nationalist pursuits and ignoring the consequences for the rest of humanity. How can we keep the peace and build a sustainable future?
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Articles sur Space debris
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China just became the first country to land a probe on the far side of the moon. It's a technological achievement and another sign of China's capabilities and ambitions in space.
Countries developing technology that removes or blasts away space junk may appear to be doing a public service. But those same technologies can destroy military and communications satellites.
Nearly 50 years since the first man walked on the moon, our morals are still stranded on Earth.
Air resistance makes it near impossible to predict the path of a crashing satellite.
From damaging the environment to contaminating the solar system, SpaceX's successful launch of the Falcon Heavy rocket also poses risks.
The mystery object seen moving through our Solar system shows the void between the stars is far from empty. So can we expect more interstellar visitors?
Protecting culturally significant spacecraft enables people on Earth to feel connected to space as the common heritage of humanity.
It promises to be one of the brightest objects in the night sky once the Mayak satellite unfolds a giant pyramid reflector. But what is it going to do?
Asgardia is calling for unrestricted research but history has given us many examples where this has resulted in unacceptable consequences.
We don't know where Tiangong-1 will land but the risk of someone being hit is about 1 in 3,200.
We should welcome the fact that amateur astronomers are increasingly keeping tabs on what's going on up above.
Back of the net! Litter-picking mission will leave space junk caught up in a web.
Just about anyone can get a tiny, cheap satellite into orbit these days. As we consider how to deploy them responsibly, inspiration comes from an amateur community of enthusiasts.
We need to find a way to break through the potentially disastrous stalemate wherever everyone waits for someone else to clear up the junk in orbit.
A crashing piece of space junk could be a a good fortune for researchers, despite falling on Friday the 13th.
Near-Earth orbits are filled with useful satellites, and also flying junk. If we're not careful they may collide - literally.
Since the birth of space flight in 1957, the number of man-made objects orbiting the Earth has grown every year. There are now more than 15,000 such objects larger than 10cm, at least those that we know…
Les contributeurs les plus fréquents
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Professor of Planetary and Space Sciences, The Open University
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Associate professor in astronomy, Monash University
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Professor (Astrophysics), University of Southern Queensland
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Alice Gorman est un·e ami·e de The Conversation
Senior Lecturer in Archaeology and Space Studies, Flinders University
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Research Fellow, University of Surrey
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Director, Risk Innovation Lab, Arizona State University
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Lecturer in Astronomy, Nottingham Trent University
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Professor of Space Physics, Lancaster University
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Senior Lecturer, Course Director in Cyberphysical Systems, Cranfield University
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Lecturer in aerospace and space systems, Cranfield University
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PhD student, Cranfield University
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Lecturer in space systems engineering, University of Glasgow
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Professor of computer science, University of Liverpool
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Ph.D. Student in the Human and Social Dimensions of Science and Technology, Arizona State University
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Research Fellow II, University of Surrey
