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Frédéric Joliot-Curie, the son-in-law of Marie Curie, even mentioned it in his Nobel Prize speech, delivered in 1935 after he and his wife, Irène, discovered a way to cause radioactive decay to occur in otherwise non-radioactive materials, a phenomenon known as artificial radioactivity.

Or, on the other hand, radioactivity could bring about a dystopian nightmare in which, as Rutherford liked to say, "some fool in a laboratory might blow up the universe unawares" by inadvertently triggering a planetary chain reaction through some artificial radioactivity process.

We also see Marie’s pride in Irène’s own research on artificial radioactivity, which would win her and her husband Fréderic Joliot their own Nobel prize just a year after Marie’s death.

It found levels of artificial radioactivity in the mud were so low they would equate to being "not radioactive" in law.

No laboratory in the world was as well equipped as theirs to discover artificial radioactivity, for none was as capable of such sustained bombardment.