Solar system terrestrial planets as a research area focuses on the comparative study of Mercury, Venus, Earth, and Mars to understand the formation, differentiation, and evolution of rocky planets. It integrates planetary geology, geophysics, geochemistry, atmospheric science, and orbital dynamics to investigate crust–mantle–core structures, volcanic and tectonic processes, surface–atmosphere interactions, and volatile and climate histories. The field relies heavily on spacecraft missions, remote sensing, in situ measurements, laboratory analyses of analog materials, and numerical modeling to constrain accretion processes, interior dynamics, habitability conditions, and the broader context of terrestrial exoplanets.
New research led by a York University professor sheds light on the earliest days of Earth's formation and potentially calls into question some earlier assumptions in planetary science about the early years of rocky planets. ...
Earth Sciences
Mar 26, 2025
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On 12 March 2025, ESA's Hera spacecraft for planetary defense performs a flyby of Mars. The gravity of the red planet shifts the spacecraft's trajectory towards the Didymos binary asteroid system, shortening its trip by months ...
Space Exploration
Mar 12, 2025
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44
Researchers are creating advanced simulations that will provide a deeper understanding of Mars's climatic history and help to determine whether it was once able to sustain life.
Astrobiology
Feb 28, 2025
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59
Mars is easily identifiable in the night sky by its prominent red hue. Thanks to the fleet of spacecraft that have studied the planet over the last decades, we know that this red color is due to rusted iron minerals in the ...
Planetary Sciences
Feb 25, 2025
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107
The European Space Agency (ESA) is ready to guide the ESA/NASA Solar Orbiter spacecraft through its closest encounter with Venus so far.
Space Exploration
Feb 18, 2025
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Though it's a cold, dead planet, Mars still has its own natural beauty about it. This image shows us something we'll never see on Earth.
Planetary Sciences
Jan 30, 2025
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82
The fact that the cold, dry Mars of today had flowing rivers and lakes several billion years ago has puzzled scientists for decades. Now, Harvard researchers think they have a good explanation for a warmer, wetter ancient ...
Planetary Sciences
Jan 28, 2025
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111
Mars is home to perhaps the greatest mystery of the solar system: the so-called Martian dichotomy, which has baffled scientists since it was discovered in the 1970s.
Planetary Sciences
Jan 18, 2025
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78
Geologically, Mars is very reminiscent of the moon. But it also looks a lot like the Earth. It all depends on who you ask.
Planetary Sciences
Jan 9, 2025
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160
It has been thought that plate tectonics were a significant factor in the shaping of our planet and the evolution of life. Mars and Venus don't experience such movements of crustal plates, but then the differences between ...
Astrobiology
Jan 9, 2025
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