A meteor hits Earth and the people leave, only to find that they forgot, in their rush to leave, food.
The people of Earth weren't expecting anything unusual on July 4th. Just the usual shopping trip, family gathering, etc. What could go wrong? They thought 'Nothing'; the universe thought 'They should pay.'
Pay for what? Well, for hurting Earth, of course. We didn't hurt Earth, did we? Yes, we did. And so a meteor was on a collision course for Earth.
And so today was unexpectedly unusual, unlike these people were merely prepared for. People went about their daily routines, and the meteor was drawing closer and closer to Earth. Closer and closer to it's unprepared citizens, too.
What it looked like up close...
A fiery space rock caught their attention, and they watched it in awe. A few moments later, loud siren went off, and a man in a business suit said, "A meteor has entered our atmosphere. Leave now, before you are killed." So the people followed him into a huge space ship.
People nervously watched as their rocket took off into space. Almost as soon as they left the Earth's atmosphere, Earth exploded into millions of tiny pieces. "Where will we go?" A girl asked. "Proxima B," The man who made the announcement said. "We'll try our best to survive."
They arrived at Proxima B. "Why's it so bright?" One woman asked. A astronomer took a closer look. "Turn the ship around, now, before we hit that star!" The ship was put on full backwards power, but it was to late. They hit Proxima Centauri, and exploded.