The hardest material known to man is currently called lonsdaleite (a carbon form), which is approx. 58 % harder than a diamond and then there is wurtzite boron nitride which is about 18% harder than diamond. Both occur in nature just like diamonds.
Another name for the entire physical universe is cosmos. It is considered the universe as a unified whole in itself.
The term "cosmos" is often used to describe the entire physical universe, including all matter and energy.
No, we do not have a measure for the hardness of an entire planet.
Cosmos, in astronomy, the entire physical universe considered as a unified whole (from the Greek kosmos, meaning “order,” “harmony,” and “the world”). Generally speaking, we use the word universe to mean the entire physical universe; a synonym is cosmos.
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Matter
The (entire) universe. Everything.
Cosmos, in astronomy, the entire physical universe considered as a unified whole (from the Greek kosmos, meaning “order,” “harmony,” and “the world”).
Cosmos, in astronomy, the entire physical universe considered as a unified whole (from the Greek kosmos, meaning “order,” “harmony,” and “the world”).
In the worldview of Universal Vortical Singularity, the entire observable universe is a spheroidal vortex, and this is empirically observed as the COBE temperature map of the CMBR dipole by the WMAP satellite. Evidently, vortex phenomena in the universe are ubiquitous from the microcosms to the microcosms. See a web site at www.uvs-model.com for the entire illustration for vortices of the universe.
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