Hubble Space Telescope sees unexpected twin 'tails' from impacted asteroid
If the asteroid itself is the center of a clock, DART came in from 10 o'clock. The bright lines at 1 o'clock, 7 o'clock and 10 o'clock aren't debris; these are diffraction spikes caused by Hubble's optics.
The two tails appear at 2 o'clock and 3 o'clock, according to aThe second tail developed sometime between Oct. 2 and Oct. 8, the NASA statement notes. Hubble has observed the asteroid 18 times since the impact., so the development isn't a total surprise. Still, scientists aren't sure yet exactly how the second tail formed, according to NASA.
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