But one planetary in Camelopardalis, just 7.5° from Polaris, is the poster child for symmetry. The Lemon Slice Nebula (IC 3568) is a young planetary spanning only some 0.4 light-year.

She decided to check whether the lemon was likely to be contaminated. She and her co-author surreptitiously swabbed 76 lemon slices served at 21 different restaurants, then cultured the results.

The Lemon Slice Nebula lies about 4,500 light-years away, with a diameter of 0.4 light-year. That’s 2.4 trillion miles (3.8 trillion kilometers), or more than 25,000 times the distance from ...

But one planetary in Camelopardalis, just 7.5° from Polaris, is the poster child for symmetry. The Lemon Slice Nebula (IC 3568) is a young planetary spanning only some 0.4 light-year.