Several years later, researchers discovered the exact cause of pellagra: a lack of the B vitamin known as niacin.

VOA: special.2009.01.27

Elizabeth Blackburn and Jack Szostak discovered the exact order of genetic information that protects chromosomes from ruin.

VOA: special.2009.12.08

She says that when she discovered the songs of British pop stars David Bowie and Queen, she realized these different things could go together.

VOA: special.2009.02.27

One day, the king discovered the relationship between his daughter and the young man.

VOA: special.2009.04.18

Later,Mizz Blackburn and Mizz Greider discovered the substance in the body that builds telomeres.

VOA: special.2009.10.07

Also,the rings around the planet Uranus were discovered there.

VOA: special.2010.07.11

Scientists discovered the hormone last century.

VOA: special.2010.06.29

Engineers discovered the problem during fueling, and worried that any excess hydrogen on the launch pad could cause an explosion during engine ignition.

VOA: standard.2009.03.15

"Now that we have discovered the endogenous capsaicin molecules, for the first time, we can block their synthesis and therefore we can treat pain at its cause."

VOA: standard.2010.05.04

Student Shelia Melvin says she has discovered the value of Internet access.

VOA: standard.2010.01.05

In eighteen forty-one, the British navy officer James Ross discovered areas now called the Ross Sea and Ross Ice Shelf.

VOA: special.2009.06.03

American officials say the information was made public after Iran discovered that Western intelligence agencies knew about the facility.

VOA: special.2009.09.26

The three men had found one of the largest amounts of gold ever discovered lying on the surface of the Earth.

VOA: special.2009.02.04

The Raptorex Kriegsteini reportedly was discovered inside a single piece of rock in the Inner Mongolia area of China.

VOA: special.2009.10.13