The biggest planets hogged a lot of the raw materials and were fully formed first.
Articles on Mars
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The recent detection of a gas in a distant plant has been linked to life forms has sparked debate among scientists.
NASA’s Curiosity rover has spotted carbon-containing minerals that can tell scientists more about what ancient Mars’ atmosphere may have looked like.
Looking at the history of ‘biosignature’ discoveries shows why they can be problematic.
Scientists will have to check whether the samples contain living microbes before they can be safely studied.
Microbes could pump out oxygen on Mars.
A rock from a presumed ancient lakebed contains complex organic molecules.
3D printing in outer space and on alien planets comes with otherworldly challenges.
The discovery indicates water may have remained stable on Mars for much longer than scientists thought.
The US wants to put a flag on Mars. But there’s a risk it could carry unwanted stowaways that might compromise future scientific investigations.
There’s been speculation that Donald Trump may cancel the Space Launch System rocket, which Nasa intended to use to get from the Moon to Mars.
The ‘Martian dichotomy’ is one of the Solar System’s greatest mysteries – but new research in closing in on a solution.
Could humans expand out beyond their homeworld and establish settlements on the planet Mars? The idea of settling the red planet has been around for decades. However, it has been seen by sceptics as a…
If Mars was once habitable, it needed to have water. For the past 3 billion years, it’s been rather cold and dry. But what about the early days?
Astronomers have detected possible signs of gases released by volcanic activity.
On what would’ve been the astronomer’s 90th trip around the Sun, here’s a look at his legacy as a scientist, advocate and communicator.
Comet Tsuchinshan-ATLAS is one of 2 comets from the Oort Cloud passing by Earth in October 2024.
Before sending humans to Mars, NASA will first return humans to the Moon’s surface to test its technology and train astronauts.
In 2022, a probe was sent crashing into an asteroid as part of a “planetary defence” test. This Monday, the second part of the mission flies off to study the consequences of the impact.
CubeSats have already visited the Moon and Mars and are key components of upcoming deep space missions.
Top contributors
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Postdoctoral research associate, University of Oxford
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Professor of Planetary and Space Sciences, The Open University
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Professor of Planetary Geosciences, The Open University
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Professor of Physics, Deputy Director (Solar System) at the Mullard Space Science Laboratory, UCL
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Senior Lecturer in Physics, Nottingham Trent University
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Senior Instrument Scientist, Australian Nuclear Science and Technology Organisation
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Senior Curator (Astronomy), Museums Victoria Research Institute; The University of Melbourne
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University Distinguished Professor of Astronomy, University of Arizona
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Scientist, Max Planck Institute for Solar System Research
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Professor of Strategy and Security Studies, Air University
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Professor of Planetary Science, University of Leicester
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Professor in Earth Sciences, Nanyang Technological University, Singapore, and Emeritus Professor of Mineral Physics, University of Cambridge
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Kevin Orrman-Rossiter is a Friend of The Conversation.
Sterrenkenner, History & Philosophy of Science, The University of Melbourne
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Earth Sciences Postdoctoral Scientist and Adjunct Associate, Dartmouth College
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ARC Future Fellow, School of Earth and Planetary Sciences, Curtin University