With the help of thousands of citizen scientists, a new study measured exactly how much brighter night skies are getting every year.
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Cellphones are constantly collecting location data from global satellites, but there is uncertainty about who is using these data, and for what purposes.
Efforts to launch rockets into space from the UK need to demonstrate reliability.
While many countries have tested anti-satellite missiles, France has committed itself not to do so. For what reasons, and with what consequences?
A new image has been taken of the whole Earth 50 years after the first - revealing noticeable changes to its surface.
NASA has been gaining momentum in recent years as investment into space has ramped up in the US. In 2022, missions dealt with the farthest, closest, hottest and coldest conditions in the universe.
Understanding when, where and why fishing vessels sometimes turn off their transponders is a key step toward curbing illegal fishing and other crimes on the high seas.
Millions of dollars have gone into California’s forest carbon offset program – with little new carbon storage to show for it, a new study suggests.
The stars, planets and Milky Way we see at night are part of a wilderness shared across the globe and across centuries. But does BlueWalker 3 herald a night sky polluted with bright satellites?
Tracking CO2 emissions with satellites can help to support emission reduction efforts under the Paris Agreement.
With the arrival of Cosmic Girl in Cornwall, the UK is preparing for its first rocket launch.
Artificial intelligence can spot differences in images from before and after a storm over wide areas in almost real time. It showed Hurricane Ian’s vast damage in Florida.
In some African countries, astronomical research is quite developed.
In Western Australia, the first of a series of little satellites just burned up in the sky – exactly as planned.
The Double Asteroid Redirection Test successfully showed that it is possible to crash a spacecraft into a small asteroid. Whether the approach could save Earth from a future threat remains to be seen.
Satellite telemetry, tiny geolocation tags and passive acoustic recording are providing new insights into bird migration and vital data for conservation.
Private satellite companies have boomed in recent years, and many experts have wondered what role they would play in a conflict. They have proved to be invaluable to Ukraine in recent months.
Build a powerful enough laser, and you can shine it into space. Aim it well, and you can blind satellites.
The southern hemisphere is more likely to be hit by space debris than the northern one.
With decades of images and data from the same locations, these satellites can show changes over time, including deforestation, changes in waterways and how loss of trees corresponds to urban heat.
Principais colaboradores
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Andrew Dempster é um amigo do The Conversation.Director, Australian Centre for Space Engineering Research; Professor, School of Electrical Engineering and Telecommunications, UNSW Sydney
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Associate Professor in Astronomy, Monash University
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Associate professor, Astronomy, University of Regina
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PhD candidate, law and military uses of outer space, University of Adelaide
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Associate Professor, Physics and Astronomy, University of British Columbia
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Associate Professor in Archaeology and Space Studies, Flinders University
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University Distinguished Professor of Astronomy, University of Arizona
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Scientific Officer, Obafemi Awolowo University
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Associate Professor, RMIT University
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Adjunct Senior Research Fellow in Environmental Law, University College Dublin
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Chair, Australian Centre for Space Governance, Australian National University
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Space Plasma Physicist, Imperial College London
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Emeritus Professor of International Law, Western Sydney University
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Associate Professor of International Affairs, Georgia Institute of Technology
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Professor (Digital Technology, Security and Governance), Flinders University
