Unit four, astronaut. astronaut. procedure. procedure. mental. mental. CM centimeter. CM centimeter. intelligent. intelligent . rocket. rocket. gravity. gravity. frontier. frontier. vehicle. vehicle. determined. determined. determined. determine satellite, satellite. launch. launch. orbit. orbit. giant. giant. leap. leap. mankind. mankind. agency. agency. transmit. transmit . data, data on board. on board. spacecraft. spacecraft. disappointment. disappointment. disappointed. disappointed. desire. desire. universe. universe. Carry on. Carry on. independently. independently. independent. independent . spacewalk. spacewalk. jade. jade. mod . module. signal. signal. In the hope of doing something. in the hope of doing something . so as to, so as to do something. so as to so as to do something. Recycle. recycle. muscle. muscle. black. black. float. float. otherwise. otherwise. beyond. beyond. Solar. solar. solar system. solar system. current. current. figure out. figure out. Efficient. efficient. Soap. soap . tower. tell. telescope. telescope. microwave. microwave. tissue. tissue. facility. facility. keen. keen. globe. globe. argue. argue. argument. argument . to atal . shallow, shallow. result in. result in pattern, pattern . analysis, analysis as a result. as a result. Hi end. hi end. monitor. monitor. regularly. regularly. regular. regular . phone. phone pillow, pillow. smart phone. smart phone resource, resource . limited. limited. provide for somebody. provide for somebody . clothing . closing. enclosing. enclosing. mystery. mystery. run out. run out. atch . attach oxygen, oxygen spotlight . one spot. nic one. The U. S, SR, the union of soviet socialist republic ics. the U. S, SR, the union of soviet socialist republics. ggaran. urg, garan. new armstrong. new armstrong, NASA national . ironic tics and space administration nasza . national aronov s and space administration. Voyager one. voyage one. so use eleven. So use eleven. ChAllenger. chAllenger. The international space station. The international space station. Jade rabbit. jay rabbit. mars. mars. jupiter. jupiter.