NASA scientists using the Kepler space telescope also announced the discovery of six planets orbiting a star called Kepler-11.

VOA: special.2011.02.09

The Americans had planned to use the Infrared Telescope Facility on top of Hawaii's Mauna Kea volcano the following night.

VOA: special.2009.08.25

In his first observations from Mount Wilson, Hubble used a telescope with a mirror one hundred fifty-two centimeters across.

VOA: special.2009.04.29

The team used the most powerful telescope in the world - the National Science Foundation's Very Long Baseline Array.

VOA: special.2009.01.20

This year also marks the four hundredth anniversary of the first recorded astronomical observations with a telescope by Galileo.

VOA: special.2009.10.27

But some in Congress want to cancel plans for the next-generation replacement for the orbiting Hubble Space Telescope.

VOA: special.2011.07.18

The James Webb Space Telescope, named after NASA's second director, will have a mirror seven times the size of the Hubble Space Telescope.

VOA: special.2011.05.23

He had the world famous telescope maker Alvan Clark and Sons make a telescope for his observatory.

VOA: special.2010.07.11

Their combined observing power gives the Very Long Baseline Array the ability to see the finest details of any telescope in the world.

VOA: special.2009.01.20

The Kepler space telescope looks for planets by measuring tiny decreases in the brightness of stars when planets cross in front of them.

VOA: special.2011.02.09

That year, an observatory official,V.M.Slipher, offered a young man a job working with the new telescope.

VOA: special.2010.07.11

But when the telescope reached orbit, NASA scientists were shocked to discover that the costly mirror of the telescope had not been shaped correctly.

VOA: special.2009.09.30

One of the group had fixed a telescope to a television set so that objects seen by the telescope appeared on the television screen.

VOA: special.2009.07.22

Then,he spent much of his time planning a new, much larger telescope in southern California.

VOA: special.2009.04.29

Soon after, Hubble began working with a larger and more powerful telescope at Mount Wilson.

VOA: special.2009.04.29

When they used the telescope to create images of the planet, they found an area that appeared dark in light the human eye could see.

VOA: special.2009.08.25

In the following years, Percival's brother,Abbott Lawrence, provided money to build a special photographic telescope.

VOA: special.2010.07.11

Anthony Wesley found an unusual dark marking in Jupiter's atmosphere using his amateur telescope.

VOA: special.2009.08.25

Many of them are using the Hubble space telescope that is named after him.

VOA: special.2009.04.29

The telescope recently received new equipment and instruments to make it even more powerful.

VOA: special.2009.09.30

It cannot be seen from Earth without the aid of binoculars or a telescope.

VOA: special.2011.07.27