1. In 1543, Nicolaus Copernicus (publish)____________“On the Revolutions of theHeavenly Spheres” claiming that the Earth and the planets (orbit) the Sun. 2. Galileo (use)____________the telescope to view the stars and planets before IsaacNewton (invent)____________the first reflecting telescope. 3. In 1686, Isaac Newton (publish)____________the Mathematical Principles of Natural Philosophy where he (lay)____________ the foundations for universalgravitation and (describe)____________the motion of the Sun and the planets. 4. After Robert Goddard (work)____________on rocket technology, he (invent)____________and (launch)____________the first liquid-fueled rocket in 1926. 5. On November 3, 1957, the Russian dog Laika (become)____________the first animal in orbit after fruit flies (be sent)____________to outer space by the United States. 6. In 1983, Sally Ride (become)____________ the first American woman in space after Russian cosmonaut Valentina Tereshkova (be sent)____________ in space twenty years earlier. 7. France (launch)____________its first satellite before Japan (put)____________its test satellite into orbit. 8. In 1971, the United Kingdom successfully (launch)____________ its satellite into orbit after China (do)____________that one year earlier.

1.   In 1543, Nicolaus Copernicus (publish) ______published ______ “On the Revolutions of theHeavenly Spheres” claiming that the Earth and the planets (orbit) orbited  the Sun.
2.   Galileo (use) ______had used______ the telescope to view the stars and planets before IsaacNewton (invent) ______invented______ the first reflecting telescope.
3.   In 1686, Isaac Newton (publish) _____published _______ the Mathematical Principles of Natural Philosophy where he (lay)______laid ______ the foundations for universalgravitation and (describe)______described______the motion of the Sun and the planets.
4.   After Robert Goddard (work)______had worked______on rocket technology, he (invent)______invented ______and (launch)______launched______the first liquid-fueled rocket in 1926.
5.   On November 3, 1957, the Russian dog Laika (become)_____became _______the first animal in orbit after fruit flies (be sent)______had been sent______to outer space by the United States.
6.   In 1983, Sally Ride (become)_____became _______ the first American woman in space after Russian cosmonaut Valentina Tereshkova (be sent)______had been sent______ in space twenty years earlier.
7.   France (launch)_____had launched______its first satellite before Japan (put)_____put_______its test satellite into orbit.
8.   In 1971, the United Kingdom successfully (launch)______launched ______ its satellite into orbit after China (do)______had done______that one year earlier.