Einstein’s theory of general relativity suggests that our universe originated in a Big Bang. But black holes, and their gravitational forces, challenge the limits of Einstein’s work.
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Articles sur Space
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India’s Chandrayaan-3 rover has found sulfur on the Moon’s surface at higher concentrations than previously seen. Sulfur, a useful resource, could pave the way for future Moon bases.
Canada’s partnership in the world’s largest radio telescope, located in South Africa and Australia, creates new opportunities for research, but the benefits go beyond astronomy.
Space can damage everything from your cardiovascular and nervous systems to your mental health – long voyages can feel isolating for many.
Planetary analogues are sites on Earth that are so extreme that they replicate those of celestial bodies in our solar system.
Months after a military officer made sensational claims about unexplained objects in the skies, NASA released a report loosely outlining a scientific approach for analyzing UAP reports.
There’s a chance Nishimura might brighten unexpectedly – but it’s a slim one.
You can’t bring your AC to space, unfortunately, but innovative flow boiling and condensation research might lead to lighter, more efficient heating and cooling on spacecraft.
The results are intriguing, but analysing the atmospheres of exoplanets is no easy task.
An astronomer and ‘black hole historian’ explains how the parts of the universe black holes grow in might influence how quickly they become bright, supermassive objects.
Treaties meant to ensure sustainability in space don’t currently regulate private companies, and not every country has signed on to an agreement for sustainable space exploration.
A new hypothesis suggests that the universe may be twice as old as we had believed. Observations from the James Webb Space Telescope provide new information on the rate of the universe’s expansion.
Space missions are still difficult, dangerous and risky – but it’s still early days in the human journey beyond our planet.
India became the first country to land near the south pole of the Moon, a notoriously difficult achievement that also marks them as the fourth country to land on the Moon.
The Indian spacecraft could lay the ground for future missions with astronauts, and even for lunar bases.
Astronomer Caroline Herschel’s work discovering and cataloging astronomical objects in the 18th century is still used in the field today, but she didn’t always get her due credit.
Liftoff to the distant asteroid is scheduled for Oct. 5, 2023 – the beginning of a six-year journey to one of the most unusual objects in the solar system.
With commercial space tourism on the rise and NASA planning to return to the Moon, you might think the US space economy is booming – but the data paint a more complex picture.
We’re currently a few years into the 25th studied solar cycle. An 11-year period of sun activity, this solar cycle is more active than previously expected.
Solar panels in space could harness more of the Sun’s energy.
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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Reader in Astrophysics, Keele University
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Senior Lecturer in Physics, Nottingham Trent University
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Sterrenkenner, History & Philosophy of Science, The University of Melbourne
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Andrew Dempster est un·e adhérent·e de The Conversation
Director, Australian Centre for Space Engineering Research; Professor, School of Electrical Engineering and Telecommunications, UNSW Sydney
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Lecturer in Astronomy, Nottingham Trent University
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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
