This is a joke. No need to cancel your plans; you have roughly
5 billion years, which is enough time to finish most things.
Also, the Sun won't actually explode. It's too small. It will swell
into a red giant, swallow Mercury and Venus, then shrink into a white
dwarf. Still: gone.
If you like the Sun and science, I recommend these books:
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Countdown: NASA expects
the Sun to last another 5 billion years or so.
Sun: the last two days as seen by NASA's
Solar Dynamics Observatory.
The soft glow around it is the author's artistic licence, not NASA's.