__WanderLust_ t1_j1nt2o5 wrote
Reply to comment by worstusername_sofar in are there noticeable differences between 1995 first picture and current images of the Pillars of Creation? by Realeron
I'm assuming they mean if there's been any movement.
Realeron OP t1_j1nw8i8 wrote
Actually I was perhaps naïvely thinking about stars formation. U/diogenes_shadow explanation about the different wavelengths "seen" by Hubble and Webb was appreciated
dblowe t1_j1nyf74 wrote
If you’re looking for movement in deep sky objects, pictures of the Crab Nebula do show it slightly expanding over the decades. This was first noticed by observers in 1921.
The object is an expanding cloud of debris from a supernova that was seen to explode in 1054 AD. A more recent one (SN1987a) has shown dramatic changes over the last 35 years, with more to come.
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