State whether the following statement is true or false:

We can see supernova remnant $G 1.9 + 0.3$ . If it is estimated to be about 25,000 light years away and now NASA says that it is about 140 years old. The supernova has been visible for 140 years.

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Detailed Solution

The given statement is true.
Concept: We are posed a question on the supernova remnant G1.9+0.3. This relic is thought to be roughly 25000 light years away, and NASA says it is 140 years old. It is our responsibility to describe how we may see this supernova relic.
Although there is a great distance of 25000 light years between the planet and the remains of a supernova, light from the supernova that occurred about 1868 did reach the Earth's surface. NASA aims to imply that the supernova is 140 years old by stating that we have been watching it for around 140 years and that its light has travelled for a total of 25 000 years to reach the planet.
So, for 140 years, the supernova has been visible.
As a result, the statement is accurate.

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