Paragraph 1
The Earth contains many
about how formed, and what is at its
. A recent study has
as to what shaped our planet and
system. Scientists say
amounts of a primordial form of the gas
may be trapped inside Earth. It is called helium-3. Scientists believe it is from a giant
of gas and dust that gelled to create different
. It has been inside Earth's
for billions of years. It is occasionally released in
eruptions.
