1. Re-entry heat glows the MIRVs. The re-entry package heats up to more than 1000C often. Specialized carbon composites similar to ones in space vehicles are us

1. Re-entry heat glows the MIRVs. The re-entry package heats up to more than 1000C often. Specialized carbon composites similar to ones in space vehicles are used. 2. I think this photo was more of a time lapse than programmed delivery of warheads at definite spacing. There are videos of MIRV entries which are equally cool. Including one of the impact site, where one can see dummy warheads impacting target zone few seconds apart. (Second video is an animated flight sequence) https://youtu.be/Eh96NdcgE2Y https://youtu.be/Eh96NdcgE2Y https://youtu.be/Mvo54LJcXe8 https://youtu.be/Mvo54LJcXe8 3. Unlikely its radial or linear entirely. The camera perspective makes it look all of them in a line. 4. Terminal guidance is not on each MIRV. But small spin generators stabilize the flight towards target. The warhead bus has onboard computer which releases individual warheads at high velocity once the correct attitude over the target is reached. Terminal flight is unguided ballistics based on calculations prior to release. Needless to say, the warhead bus releases them at a LEO altitude, so by impact they are easily ~10-15 Mach 5. Yes & Yes. US DoD seems very particular on keeping Kwajalein in mostly pristine state. All discernible parts are recovered in the atoll & shallow sea around it. A lot of people from the local population are employed in the upkeep of the facility & maintenance. Usually the impact zone is a very concentrated area. Foreign military access is out of bounds with US Strategic Command presence in the atolls.