Proponents of mining in space often point to the potential benefits for Earth and its people. But this research casts doubt on many of them.
Articles on Near-Earth asteroids
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With a diameter between 1.1km and 2.3km, asteroid 2022 AP7 is the largest potentially hazardous asteroid found since 2014.
We don’t know much about the target asteroid of Nasa’s imminent Dart mission, so it’s hard to predict what will happen when we crash into it.
NASA has only mapped 40% of the potentially dangerous asteroids that could crash into Earth. New projects will boost that number, and upcoming missions will test tech that could prevent collisions.
An asteroid that landed in Russia in 2013 injured 1,500 people – and was just 20 metres in diameter. What could we do if a major threat was detected?
This article was based on research that has been retracted. See editor’s note.
A minuscule particle of asteroid dust has helped reveal how celestial rocks like Earth might have sprouted life.
Bennu will tell us about our own origins as much as about the origin of asteroid Bennu.
OSIRIS-REx will touch down on asteroid Bennu, collect a sample of the dust and begin its journey back to Earth, where scientists will study it, hoping to learn secrets of the solar system’s origin.
A small asteroid will cross Earth’s orbit on November 2. Scientists aren’t sure if the two will collide – but even if they do, there’s still no cause for alarm.
A 100-metre-wide asteroid passed just 70,000km from Earth on Thursday, and we had little warning it was about to happen. What threat is posed by asteroids and how do we find them?
Top contributors
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John Curtin Distinguished Professor (Radio Astronomy), Curtin University
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Associate Professor - Physics, RMIT University
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Assistant Professor of Space and International Relations, Johns Hopkins 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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Professor of Planetary and Space Sciences, The Open University
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Lecturer in Earth Sciences, Royal Holloway, University of London
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Senior Lecturer in Critical and Green Technology Metals, University of Exeter
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Professor of Practice for Aerospace and Mechanical Engineering and Senior Vice President for Research & Innovation, University of Arizona
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Senior Research Fellow, The University of Queensland
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Research Professor and Director of the Southeastern Paleoamerican Survey (SEPAS) at the South Carolina Institute for Archaeology and Anthropology, University of South Carolina
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Lecturer in Space Engineering, UKRI FL Fellow, University of Liverpool