Chapter 1
Rains of terror and heavy metal skies
Chapter 2
Melting points and precious rocks
Chapter 3
Multiple suns and cosmic dances
Chapter 4
Homeless wanderers and steam worlds
Ch 2 · Melting points and precious rocks
artiteacher At twice Earth's size, this scorching 4,500°F planet maintains a thick atmosphere replenished by gases bubbling from its global lava ocean.
Quiz
How long does it take the super-Earth 55 Cancri e to complete a full orbit (one year) around its star?
artiteacher Located 750 light-years away, this pitch-black gas giant glows from extreme heat.
Fun Fact
Diamond planet: The planet PSR J1719-1438 b is so dense that scientists believe it is made of solid, ultra-dense crystallized carbon, essentially a giant cosmic diamond.
Quiz
How did the diamond planet PSR J1719-1438 b get its incredibly dense, crystalline composition?
Glossary
diamond (noun)
A precious stone consisting of a clear, crystalline form of pure carbon. The scorched planet Janssen is hypothesized to contain a massive interior layer of this mineral.
A precious stone consisting of a clear, crystalline form of pure carbon. The scorched planet Janssen is hypothesized to contain a massive interior layer of this mineral.
Quiz
What is the approximate dayside temperature of the record-breaking planet KELT-9b?