Decades can sometimes pass in the blink of an eye, or about 20 seconds. NASA has released two dramatic time-lapses of two of the most famous objects in the sky, compressing 20 years into just 20 seconds.

'Grab your popcorn', NASA just released mesmerising Nebula timelapses captured by Chandra observatory

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'Grab your popcorn', NASA just released mesmerising Nebula timelapses captured by Chandra observatory