BBC2 年
The Earth's structure and plate tectonics
The Earth is made up of different layers: Therefore, instead of tectonic plates moving because of the convection currents, evidence suggests it is the plates that drive the convection. Slab pull ...
The Weather Network on MSN1 天
NASA SPHEREx will map the cosmos to unlock its deepest mysteries
SPHEREx will survey hundreds of millions of galaxies, as well as search the Milky Way for water and organic molecules ...