Why is the B-21 slated to replace the B-1B by 2036 while the B-52 will continue in service. Wouldn't it make more sense to retire the B-52 and extend the B-1B service?
The Secret Upgrade that Makes the B-52 Stratofortress the US Air Force's Most Deadly Bomber
Boeing B-52 Stratofortress - Wikipedia
Instead of putting new engines on the B-52 or buying the expensive B-21 Raider, why doesn't the Air Force procure a B-52I with modern technology? - Quora
Life Inside a B-52, The B-52 Stratofortress, affectionately dubbed the BUFF (Big Ugly Fat Fellow), is a testament to the sheer willpower of engineering over time. Via, By Interesting Engineering
Why/how has the Boeing B-52 remained in service for so long and not been replaced yet? - Quora
MQ-25
B-52 History Why the B-52 Is So Cool
Instead of putting new engines on the B-52 or buying the expensive B-21 Raider, why doesn't the Air Force procure a B-52I with modern technology? - Quora
Boeing B-52 Stratofortress - Wikipedia
Boeing B-52 Stratofortress - Wikipedia
The Immortal Buff: Replacing The B-52
The Christmas Bombing, Air & Space Magazine
The Area 51 File: Secret Aircraft and Soviet MiGs
The untold story of the world's biggest nuclear bomb - Bulletin of the Atomic Scientists