Near the space center in Houston,Texas, some amateur star-watchers were trying to see the Apollo spacecraft through telescopes.

VOA: special.2009.07.22

And, as I already said, he loved mathematical instruments and telescopes.

我之前还说过,他喜欢数学仪器和望远镜

耶鲁公开课 - 欧洲文明课程节选

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

VOA: special.2011.02.09

After all,they observe the skies with huge ground-based and costly space telescopes.

VOA: special.2009.08.25

Instead of collecting light, the 25 meter wide telescopes collect radio waves.

VOA: special.2009.01.20

Lowell Observatory now has four telescopes and is continuing to expand.

VOA: special.2010.07.11

They could compare it with images taken by Earth-based telescopes.

VOA: special.2009.09.30

It provided technology for telescopes, medical images and digital cameras.

VOA: special.2009.12.08

The two telescopes are being launched from French Guyana for a total cost of more than $2 billion.

VOA: standard.2009.05.14

Goran Pilbratt is project scientist for one of the telescopes, called Herschel.

VOA: standard.2009.05.14

The observatory houses two large telescopes and several university research programs.

VOA: standard.2009.09.01

There were no radio telescopes. There was no radio technology here.

VOA: standard.2010.04.16