We are used to long timeline for space events. At least million years. And then the stingray nebula fades within the last 20 years. Fascinating…
https://www.space.com/stingray-nebula-fading-fast-hubble-photos
We are used to long timeline for space events. At least million years. And then the stingray nebula fades within the last 20 years. Fascinating…
https://www.space.com/stingray-nebula-fading-fast-hubble-photos