The solar system has a tail, NASA reveals.

Our solar sys¬≠tem, home to Earth and the other seven plan¬≠ets, may be the equiv¬≠a¬≠lent of our own back¬≠yard in astro¬≠nom¬≠i¬≠cal terms, but it’s still full of sur¬≠pris¬≠es. The lat¬≠est, accord¬≠ing to NASA, is that the entire solar sys¬≠tem has a‚Ķ

By Carl Franzen, theverge.com

Our solar system is moving like a comet. I wonder why is it happening? Are we falling constantly because the gravity force of some giant and heavy object?