What fate is awaiting for the Universe?

In these days we have been discussing about the universe in our class. We have learnt that the universe began with a hot explosion known as Big Bang. This theory states that all the matter and energy in the universe were concentrated into a single small point. Then, after that explosion, the universe was bigger and bigger and still it is expanding today. But will the universe expand for ever? What fate is awaiting for our universe? I am going to give you some clues. Big Crunch, Big Rip, Big Freeze... I wonder why the name of all the theories about the universe begin with Big?

In my opinion this is a very important question and I am very interested in your opinions. You have read some of them in our class but I want to know all of them. Let me know as comments.

What has happened with the horoscope?

In ancient times, people believed that the Earth was the center of the Universe and the Sun rotated around our planet. Today we know that the Sun is in the center of the Solar System and every planet orbits our star. They also observed the sky and connected the stars with lines drawing pictures known as constellations. They were convinced that those constellations were important symbols telling stories about their gods and myths and were very useful in order to know about people personality  and predict their future too.

The ecliptic. By Tauʻolunga - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=935439

As a result of the motion of the Earth around the Sun, our star appears to pass in front of different constellations. This apparent path of the Sun on the celestial sphere marks the ecliptic; the constellations through which the sun passes define the zodiac. Consequently, all the zodiac constellations lie along the ecliptic.
Babilonians, about 3.000 years ago, had a 12 month calendar, so they decided to divide the zodiac into twelve equal parts. For them, there were twelve zodiac constellations and this is the origin of the twelve signs listed in the horoscope that everybody knows. For example, if you were born under the sign of Leo, it means that the Sun was in this constellation in that moment and, of course, every year at your birthday.
But... is it true? Recently some newspapers said that NASA have changed the astrological signs for first time in 2000 years; consequently, lot of people now have a different zodiac sign. In my opinion, this is not a great problem for people who don't believe in horoscope, but what happens with the other people? Has their luck changed? 
I think that this is a very interesting matter that we can investigate. An to begin with, just some easy questions:
What do you know about zodiac? What is your zodiac sign? Can the stars really predict the future or describe what are people like based on their birth date? Please, write your answers as a comment.
(Spanish version)