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
Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.
'Portfolio' of marine reserves enhances fish...
on September 28, 2020 at 7:00 pm
Scientists say a 'portfolio' of protected areas within marine parks such as the Great Barrier Reef can help secure sustainable fish populations.
Astronomers discover an Earth-sized 'pi planet'...
on September 21, 2020 at 3:47 pm
In a delightful alignment of astronomy and mathematics, scientists at MIT and elsewhere have discovered a "pi Earth"—an Earth-sized planet that zips around its star every 3.14 days, in an orbit reminiscent of the universal mathematics constant.
The four most promising worlds for alien life in...
on September 18, 2020 at 1:40 pm
The Earth's biosphere contains all the known ingredients necessary for life as we know it. Broadly speaking these are: liquid water, at least one source of energy, and an inventory of biologically useful elements and molecules.
Humanity at crossroads, biodiversity report cards...
on September 16, 2020 at 2:01 pm
Developing countries that have been pushing for stronger ecosystems protections have been armed with a cache of evidence, released in a series of biodiversity report cards that warn the world teeters at a crossroads.
Hints of life on Venus: Scientists detect...
on September 14, 2020 at 3:55 pm
An international team of astronomers, led by Professor Jane Greaves of Cardiff University, today announced the discovery of a rare molecule—phosphine—in the clouds of Venus. On Earth, this gas is only made industrially, or by microbes that thrive in oxygen-free environments.