The two scientists, who are married to each other, performed the experiment on themselves.

As the first message was seen as friendly contact, scientists went ahead and performed the fusion.

About 200 scientists and experts perform roughly 25,000 tests per year.

Understanding the genes behind these characteristics will allow scientists to perform more knowledgeable selective breeding.

Before scientists perform these experiments on humans, however, they must grapple with what is known as the law of unintended effects.

Often, governments pass laws that restrict the kind of research that scientists can perform.

Other scientists perform stable isotope studies on the rocks to gain information about past climate.

For that purpose, scientists must use another test and perform it in high-level biosafety laboratories.

The new observatory will help scientists perform an all-sky scan survey.

With animals, scientists can perform larger numbers of tests than could be done on people.