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.
In Dante's "Divine Comedy," Hell is described as an "inferno" with nine concentric circles, the entrance of which has a sign that reads "Abandon all hope, ye who enter here." For the planets of the solar system, Venus is ...
Planetary Sciences
Apr 6, 2026
1
34
Artemis II, NASA's first crewed mission to the moon in more than 50 years, represents a shift from short visits toward sustained exploration, where understanding lunar geology and resources becomes as important as the engineering ...
Space Exploration
Apr 1, 2026
0
56
Venus is increasingly becoming a touch point for our studies of exoplanets, as missions like the James Webb Space Telescope (JWST) and the upcoming Habitable Worlds Observatory (HWO) begin to characterize rocky exoplanets ...
Planetary Sciences
Mar 26, 2026
1
98
Even when the idea of terraforming Mars was originally put forward, the idea was daunting. Changing the environment of an entire planet is not something to do easily. Over the following decades, plenty of scientists and engineers ...
Space Exploration
Mar 9, 2026
8
648
Finding Earth-like planets orbiting sun-like stars and identifying signs of life such as oxygen or water is a major goal in astronomy and a key interest for the public. Addressing this challenge speaks directly to one of ...
For about six months, NASA's Curiosity Mars rover has been exploring a region full of geologic formations called boxwork, low ridges standing roughly 3 to 6 feet (1 to 2 meters) tall with sandy hollows in between. Crisscrossing ...
Planetary Sciences
Feb 23, 2026
0
2324
For life to develop on a planet, certain chemical elements are needed in sufficient quantities. Phosphorus and nitrogen are essential. Phosphorus is vital for the formation of DNA and RNA, which store and transmit genetic ...
Astrobiology
Feb 9, 2026
0
147
SpaceX is putting its longstanding focus of sending humans to Mars on the back burner to prioritize establishing a settlement on the moon, founder Elon Musk said Sunday.
Space Exploration
Feb 9, 2026
0
58
The current image of Mars as an arid and hostile desert contrasts sharply with the history revealed by its surface. Channels, minerals altered by water, and other geological traces indicate that the red planet was, in its ...
Planetary Sciences
Feb 4, 2026
0
96
While Io, the most volcanically active moon in the solar system, appears completely dry and devoid of water ice, its neighbor Europa is thought to harbor a vast global ocean of liquid water beneath its icy crust. A new international ...
Planetary Sciences
Jan 20, 2026
0
202
