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Planetary science

Construction-site inspection

How do you build a planetary system? Astronomers are tackling the question by peering back in time at the gas and dust surrounding stars younger than our Sun.

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Figure 1: The β Pic disk, imaged in the mid-infrared at 11.7 µm by Telesco et al., shows a clump of hot dust far from the star.


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Weinberger, A. Construction-site inspection. Nature 433, 114–115 (2005).

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