The two astronauts explored an area that they called Tranquility Base. Lack of space in their lunar spacecraft,the Eagle, forced them to leave equipment on the surface.

VOA: special.2010.03.02

But the current California action registers only the objects, not Tranquility Base.

VOA: special.2010.03.02

It was in an area known as the Sea of Tranquility.

VOA: special.2009.07.15

Listeners on Earth heard the countdown from Tranquility Base: "Three,two,one .

VOA: special.2009.07.15

Armstrong reported: NEIL ARMSTRONG: "Tranquility Base here.

VOA: special.2009.07.15

Two astronauts aboard Endeavour are set to conduct three space walks that will largely be devoted to installing Tranquility.

VOA: standard.2010.02.08

Attached to Tranquility is a robotic control station with six windows around its sides and another in the center.

VOA: standard.2010.02.08

(Speaking) Endeavour blasted off from Florida to the Space Station last week, carrying the cupola, attached to the new module called Tranquility.

VOA: standard.2010.02.18

In a nationally televised message, Mr.Zuma called for tranquility to allow a full investigation into the incident.

VOA: standard.2010.04.05

"And that I hope that somehow we find a way to achieve a military tranquility."

VOA: standard.2010.02.11

When they get to the International Space Station, the Endeavour crew will be delivering and installing a module known as Tranquility, which will provide additional room for crew members.

VOA: standard.2010.02.08

Upon descent, alarms went off telling the astronauts that the automatic guidance system was steering the lander toward a boulder-strewn crater instead of a relatively flat landing site called the Sea of Tranquility.

VOA: standard.2009.07.16

Tranquility is the last major U.S.piece of the space station, and once it is added, the space station will be about Leinbach sent off Endeavour's six-member crew Monday with good wishes for the planned 13-day mission.

VOA: standard.2010.02.08

"the atmosphere we require for the talks is one of tranquility, one of understanding and we thought this didn't prevail and we thought we both need time to reach that tranquil atmosphere so we said we would postpone that meeting,"

VOA: standard.2009.09.05

"Houston,Tranquility base here,".

VOA: standard.2009.07.16