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Zarya was launched by a Russian Proton rocket in November 1998. • In December 1998, the space shuttle added the Unity module, called Unity Node. • In July 2000, the Zvezda service module was added. • The first crew, called Expedition 1, arrived in November 2000. • The Destiny module was added in February 2001. • Airlocks, docking ports for spacecraft, and • See pages 50–51 SPACE SHUTTLE (USA) connecting frames have also been added. P eople can stay in space for months or years at a time by living on orbiting space stations.

This name is often used for a crewed vehicle, one carrying astronauts. Space probe A small, crewless spacecraft sent to explore space and send information or data back to Earth. Supergiant star A very large, bright giant star. Supernova The massive explosion at the end of a supergiant star’s life. Telescope A device that makes faraway things seem bigger, used for studying space. Optical telescopes detect light rays, while other kinds detect other forms of electromagnetic rays or radiation, such as radio waves, IR (infrared), UV (ultraviolet) and Xrays.

Launched on May 14, 1973 and spent more than six years in orbit. It was shaken so much during launch that one of its solar panels was torn off. • Skylab re-entered the Earth’s atmosphere on July 11, 1979. The International Space Station • Salyut 7 spent nearly nine years in orbit. MODULE Skylab in orbit at the end of its mission. LAUNCHED USED FOR Core module 1986 Command center and accommodation Kvant-1 1987 Astronomical observatory Kvant-2 1989 Airlock for spacewalks Kristall 1990 Processing materials Spektr 1995 Piroda 1996 United States Europe Remote sensing Russia Italy Remote sensing Japan Canada Brazil 57 GLOSSARY GLOSSARY Arachnoid A type of volcano with ridges around it that resembles a spider’s body and legs when seen from above.

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