Solar System Sun
Terrestrial Planet Mercury, Venus, Earth (Moon), Mars
Asteroid Belt Ceres, Vesta
Jovian Planet Jupiter, Saturn, Uranus, Neptune
Kuiper Belt Pluto, Haumea, Makemake
Scattered Disc Eris, Sedna, Planet X
Oort Cloud Etc. Scholz’s Star
Small Body Comet, Centaur, Asteroid
These are organized by a classification scheme developed exclusively for Cosma. More…
Terrestrial planet, telluric planet, or rocky planet is a planet that is composed primarily of silicate rocks or metals. Within the Solar System, the terrestrial planets are the inner planets closest to the Sun, i.e. Mercury, Venus, Earth, and Mars. The terms “terrestrial planet” and “telluric planet” are derived from Latin words for Earth (Terra and Tellus), as these planets are, in terms of structure, “Earth-like”.
Terrestrial planets have a solid planetary surface, making them substantially different from the larger giant planets, which are composed mostly of some combination of hydrogen, helium, and water existing in various physical states. — Wikipedia
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- Less restrictive 'bioburden' rules would make...on October 7, 2021 at 6:57 pm
A new report that could make it simpler to send spacecraft to some areas of Mars while still protecting the planet from Earth-based contamination was presented today at a press conference at the 53rd annual meeting of the American Astronomical Society's Division for Planetary Sciences by Planetary Science Institute Senior Scientist Amanda Hendrix.
- Supercomputing effort to model the complex...on October 7, 2021 at 1:12 pm
Earth's rapidly changing Arctic coastal regions have an outsized climatic effect that echoes around the globe. Tracking processes behind this evolution is a daunting task even for the best scientists.
- Protecting the ozone layer is delivering vast...on October 6, 2021 at 7:03 pm
An international agreement to protect the ozone layer is expected to prevent 443 million cases of skin cancer and 63 million cataract cases for people born in the United States through the end of this century, according to new research.
- Dwarf planet Vesta serves as a window to the...on October 6, 2021 at 7:03 pm
The dwarf planet Vesta is helping scientists better understand the earliest era in the formation of our solar system. Two recent papers involving scientists from the University of California, Davis, use data from meteorites derived from Vesta to resolve the "missing mantle problem" and push back our knowledge of the solar system to just a couple of million years after it began to form. The papers were published in Nature Communications Sept. 14 and Nature Astronomy Sept. 30.
- Astronomers may have discovered first planet to...on October 2, 2021 at 6:20 am
UNLV researchers and colleagues may have identified the first known planet to orbit three stars.