The only particle we can directly observe coming out of the Sun’s core is the __________ .
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Without the strong nuclear force, the universe would be make…
Without the strong nuclear force, the universe would be make only of hydrogen.
The sunspot cycle averages about 11 years.
The sunspot cycle averages about 11 years.
Fusion depends upon the ____________ nuclear force getting t…
Fusion depends upon the ____________ nuclear force getting the protons to stick together.
The __________ year solar cycle includes both peaks in sunsp…
The __________ year solar cycle includes both peaks in sunspot numbers and the magnetic polarity reversals.
Compared to the underlying photosphere and chromosphere, the…
Compared to the underlying photosphere and chromosphere, the corona is __________ in temperature.
At its current rate of consuming hydrogen, the Sun can stabl…
At its current rate of consuming hydrogen, the Sun can stably shine for__________ .
The corona can only be glimpsed from Earth during a ________…
The corona can only be glimpsed from Earth during a __________ .
Which of these are not associated with the active Sun?
Which of these are not associated with the active Sun?
Pluto is most similar to
Pluto is most similar to