Look into the night sky
Check the constellations
Stars in their billions
Everyone a sun

Nuclear reactions
Hydrogen and helium

Island galaxies
Oscillating universe
Quasars & pulsars
Neutron stars

Nuclear reactions
Hydrogen and helium

Horse Head Nebula
Somewhere in Orion
Supernova remnant
X-ray source

Nuclear reactions
Hydrogen and helium
Nuclear reactions
Hydrogen and helium
Nuclear reactions

Nuclear reactions

Nuclear reactions

Nuclear reactions

Nuclear reactions

Nuclear reactions