The investigators say they found no evidence that the university's scientists cheated to prove the existence of human-caused climate change.

VOA: special.2010.04.27

Since ancient times, thinkers including the Greek astronomer Ptolemy believed in the existence of a huge continent on the South Pole.

VOA: special.2009.06.03

The surrounding area does not make you suspect the existence of such a great opening in the earth.

VOA: special.2009.10.07

Learning about the existence of these HeLa cells was an emotional and difficult experience for the family.

VOA: special.2010.07.21

Scientists use the word biodiversity to describe the existence of many kinds of plants,animals and other organisms.

VOA: special.2010.05.25

Scientists say extensive observations from earth-based telescopes are needed to confirm the existence of the planets.

VOA: special.2011.02.09

The existence of the North Pacific Garbage Patch first gained public attention in nineteen ninety-seven.

VOA: special.2009.09.22

Another team of researchers recently reported on the existence of two colors from different dinosaurs.

VOA: special.2010.03.16

Alzheimer's is considered if the tests fail to show the existence of other problems.

VOA: special.2009.09.15

Israeli proponents of the settlements say the existence of the communities is necessary for the survival of the Jewish State.

VOA: standard.2009.09.07

Idries says another obstacle to dentente between Iraq's Shi'ites, Sunnis,and Kurds is the existence of four-million Iraqis, living abroad, many of whom are disenfranchised.

VOA: standard.2009.10.26

Mwangura,whose claim can not be verified, told VOA the pirates may not be telling the truth when they deny the existence of the arms.

VOA: standard.2009.11.10

(Speech) He says that today, the propaganda of arrogant nations of the world is the main source for the existence of conflict inside Iran.

VOA: standard.2009.12.07

Palestinians say the existence of the settlements hampers the establishment of a viable Palestinian state.

VOA: standard.2009.11.01