The laws of physics are going to be changed again -- after the millennial reign of Christ.
According to Peter, God is going to suspend the strong nuclear force and the sub-atomic particles are going to fly apart.
2 Peter 3:10 But the day of the Lord will come as a thief in the night; in the which the heavens shall pass away with a great noise, and the elements shall melt with fervent heat, the earth also and the works that are therein shall be burned up.
Note that it's not a "big bang" we believe in, but a "great noise."
Gravity, of course, will be suspended, as we traverse back and forth from Earth2 to a 1500 cubed-mile city (New Jerusalem) hovering above, via the King's Highway.
Photosynthesis and the sun will take a backseat to Christ, Himself.
Revelation 21:23 And the city had no need of the sun, neither of the moon, to shine in it: for the glory of God did lighten it, and the Lamb is the light thereof.