NASA's Wide-field Infrared Survey Explorer (WISE) has returned its first photograph - a calibration shot of "about 3,000 stars in the Carina constellation": First infrared image from NASA's wise NASA explains* that the eight-second exposure was "captured as the spacecraft stared in a fixed direction, in order to help …
Kudos to NASA for using an inventive measuring unit... particularly as outside of the scientific community and regular zoo visitors, most people have no idea how big a polar bear is.
I hate terms like " "three times the size of the [full] Moon"...!
Is that "three times as wide and three times as tall as the [full] Moon, covering an area nine times the size". or "1.75 times as wide and 1.75 times as tall as the [full] Moon, covering an area three times the size"?
New ElReg unit: one wide-polarbear
That is all.
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