Sentence:  Revenue at Alphabet's Other Bets division – which includes broadband business Google Fiber, home automation products Nest, self-driving cars and X, the research facility that works on "<WSD>moon shot</WSD>" ventures – rose 150% to $185m, while operating losses widened to $859m. 
Meaning of the word marked with <WSD> tags:  An expensive, hard, or unlikely task of great potential impact.