What will happen to Earth after the sun …………………. (die / dies / died)? Scientists believe that in 5 billion years, our sun’s time ………………….. (will / would / had) come and then it will swell into a huge ball that will fry Earth or even ……………………. (swallow / swallowed / swallowing) it up. Our star’s outer layers will then fly off, and its core ………………………….. (will / would / should) shrink into a dense, fading object called a white dwarf. They ……………………….. (arrive / arrived / have arrived) at the conclusion after studying new images of a dead star.

 The images ………………………. (taken / took / were taken) by the Spitzer Space Telescope, which recently …………………….. (focused / was focused / have focused) on a huge, eye-shaped cloud of gas and dust called the Helix nebula, 700 light-years from Earth. The Helix nebula ……………………. (contain / contains / contained) the leftover debris that a star spewed as it collapsed. Inside lies a white dwarf that is still hot. This means that the star ………………………… (died / die / has died) only recently.

 Solution

What will happen to Earth after the sun dies? Scientists believe that in 5 billion years, our sun’s time will come and then it will swell into a huge ball that will fry Earth or even swallow it up. Our star’s outer layers will then fly off, and its core will shrink into a dense, fading object called a white dwarf. They arrived at the conclusion after studying new images of a dead star.

The images were taken by the Spitzer Space Telescope, which recently focused on a huge, eye-shaped cloud of gas and dust called the Helix nebula, 700 light-years from Earth. The Helix nebula contains the leftover debris that a star spewed as it collapsed. Inside lies a white dwarf that is still hot. This means that the star died only recently.