The nuclear properties of plutonium-239 were also studied; researchers found that when it is hit by a neutron it breaks apart (fissions) by releasing more neutrons and energy.
Sifat-sifat nuklir plutonium-239 juga dikaji; para peneliti menemukan bahwa ketika ia ditembakkan dengan neutron, ia akan memecah (fisi) dan melepaskan lebih banyak neutron dan energi.