What type of scientist is most likely to study the cooling of lava after a valcanic reaction

What's the yellow wallpaper?

Pancreassalivary glandsliverlachrymal glandssweat glandoil glandsgoblet cells

The soviet union beat the us to the first successful launch, with the october 4, 1957, orbiting of sputnik 1, and later beat the us to have the first human in earth orbit, yuri gagarin, on april 12, 1961. the "race" peaked with the july 20, 1969, us landing of the first humans on the moon with apollo 11