God sees all and hears all. Are you guys aware that He notices your desperate attempts to save yourselves from "doomsday" events? Do you think you are smarter than He is?
Since God made all things, then all things are connected through Him.
New American Standard Bible: Revelations 8:11
The name of the star is called Wormwood; and a third of the waters became wormwood, and many men died from the waters, because they were made bitter.
To all of the wanna-be heroes out there with your fancy underground shelters:
When Wormwood falls, some of the bottled water (connected to the original body of water that it came from due to God's Works) will become bitter and make you die when you drink it.
That's what you get for trying to "beat the system."