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How have complex molecules such as formaldehyde (H₂CO) been detected in interstellar clouds?
Q5: About 3000 stars are visible to the
Q29: Why does the core of the Sun
Q46: The two longest stages in the lifetime
Q52: What is a typical size for a
Q137: The star α Centauri C and the
Q153: What are thermal pulses?<br>A) They are the
Q199: The major source of energy in the
Q225: Two stars,one classified A4 V and the
Q228: A white dwarf,the surviving core of a
Q253: The MOST accurate stellar parallax measurements for