( Galileo ( ( constructed ( ( ( his ( first telescope ) ) , ) ( which ( made ( objects ( ( ( ( appear ( ( three times ) ( ( nearer and ) larger ) ) ) , ) and ) ( used ( it ( to ( make ( his ( first ( astronomical observations ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Galileo)) (VP (VBN constructed) (NP (NP (PRP$ his) (JJ first) (NN telescope)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBD made) (SBAR (S (NP (NNS objects)) (VP (VP (VBP appear) (ADJP (NP (CD three) (NNS times)) (JJR nearer) (CC and) (JJR larger))) (, ,) (CC and) (VP (VBD used) (S (NP (PRP it)) (VP (TO to) (VP (VB make) (NP (PRP$ his) (JJ first) (JJ astronomical) (NNS observations)))))))))))))) (. .)))
Galileo constructed his first telescope, which made objects appear three times nearer and larger, and used it to make his first astronomical observations.
(ROOT (S (NP (DT A) (NN telescope)) (VP (VBZ is) (VP (VBN used) (S (VP (TO to) (VP (VB make) (S (NP (NP (NNS objects)) (PP (IN in) (NP (NN space)))) (VP (VB appear) (ADVP (RBR closer))))))))) (. .)))
A telescope is used to make objects in space appear closer.