Paragraph 2
The research is very
for planetary
. They think the helium-3 could unlock
of the Big Bang. The
of helium-3 could mean that Earth was created
than we thought. A geophysicist in the USA said: "There is
that has been interpreted to say the Earth formed very
, requiring 100
years. [However],
wouldn't get much helium
in the Earth if the Earth formed that slowly."
