Which is a key detail the author could add to paragraph 2 to help
support the main idea?
Main idea of Paragraph 2: The sun also produces more
violent types of space weather.
When a solar flore erupts, it has the force
of a hundred million hydrogen bombs.
Scientists believe that solar flares follow
an 11-year cycle.
A person needs to use a solar telescope
to see a solar flare from Earth,
Solar flares were first observed in 1859
by an astronomer in England.