Examlex
If the Hubble Space Telescope were used to take pictures of the entire sky,roughly how many galaxies would those pictures contain?
Pyroclastic Flow
A fast-moving current of hot gas and volcanic materials that flows down the side of a volcano during an explosive eruption.
Sandstone
A sedimentary rock consisting of sand-sized mineral particles or rock fragments.
Basaltic Lava
A type of magma or lava that is low in silica and has a relatively low viscosity, leading to smoother flow characteristics.
Obsidian/Glass
A natural volcanic glass formed from the rapid cooling of acidic lava, known for its conchoidal fracture and sharp edges.
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