According to the speaker, what do people often think about astronomers?

Most people think of astronomers as people who spend their time in cold observatories peering through telescopes every night. In fact, a typical astronomer spends most of his/ her time analyzing data and may only be at the telescope a few weeks of the year. Some astronomers work on purely theoretical problems and never use a telescope at all. You might not know how rarely images are viewed directly through telescopes. The most common way to observe the skies is to photograph them.

Lufthansa said Tuesday that traffic in the first seven months of this year rose 16.8 percent, helped by increased demand on Asia-Pacific routes, as well as gains in Europe and on African and Middle East routes. The German carrier swung to a first-half net profit of 39 million euros from a loss of 392 million in the first half of 2003. This too was below an average analyst forecast of 105 million euros.