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UNITY HUB

por José Arévalo

History of Astronomy

por Matisse Musy-Beaton

Black Hole

por Santiago Barrera

Weathering and Erosion

por Emre Fisher

Exploring our Universe

Solar system

Planet cools after collision with planet tesmails forming moon

Electro magnetic field shielding against solar winds

Hot ball of rock, iron catastrophe, molten iron sank to core

Matter would pile due to gravity to form dust , dust to rocks, rocks to lumps, lumps to planetesmials

formed solar nebulae ( galaxy)

energy released from star form matter

Stars

Explosion of star releasing large amounts of energy

Elements formed due to nuclear reactions

Nuclear fussion converting hydrogen into helium started forming light and heat and therefore sun

Matter came together but undistributed due to gravity to form large objects

Big Bang

Matter was not uniformly distrubted, causing formation of uneven clumps then galaxies then large objects then planets

Hydrogen, helium, and lithium formed from the simpliest of particles

Exploded 12 billion years ago and universe expanded

One Geometric point