Our look back to the era between the Big Bang and the birth of stars provoked skepticism and awe. Some readers said scientists reached beyond their data, while others found an affirmation of God's work

I'm so glad that your astronomy cover story about the first stars [Sept. 4] dealt with what we astronomers really do rather than the mere semantic debate over whether Pluto is a planet or a dwarf planet. Michael Lemonick wonderfully conveyed the feel of using a big telescope and showed how astronomers work together, observing in different parts of the spectrum...

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