11 Questions
What is the main source of power for the Sun's heat and light?
Core nuclear reactions
How long does it take for a single photon to pass through the Sun's Radiative Zone?
A million years
Which layer of the Sun makes up roughly 2% of its volume and nearly half of its mass?
Core
What will the Sun become after it swells to become a red giant?
White dwarf
What is the final phase of a white dwarf known as?
Black dwarf
What is the main function of the radiative zone in the Sun?
Bouncing off radiation
Which layer of the Sun's atmosphere emits the light we see?
Photosphere
What is the main component of the Sun's corona?
Spiky structures known as spicules
Which region of the Sun is sometimes referred to as 'the Sun’s upper atmosphere'?
Chromosphere
What are sunspots on the Sun's surface mistaken for if observed from a distance?
Holes in the Sun
What dominates the vast bubble of space known as the heliosphere?
Solar wind
Learn about how the Sun formed approximately 4.6 billion years ago from a spinning cloud of gas and dust, and its future evolution into a red giant. Discover the timeline of the Sun's life cycle and what to expect in the next 5 billion years.
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