Biology is a fascinating subject. Here you can study everything from the human body, bacteria, viruses, amphibians, mammals, birds, flowers, plants, all the way to Darwin's theory of evolution. The human body itself is fascinating.
From the study of the brain, to the human heart, to all the different organs of the human body, to the functioning of hormones, to viruses and diseases that plague us, there is an endless amount of material to study. Most students
probably remember the time they dissected a frog during their biology class! It's not something we do every day but certainly it brings memories for those of us who have studied biology.
What I find fascinating are viruses. These things can stay dormant for many many years. Their sole purpose in life is to duplicate themselves once they are able to invade a cell. Unfortunately, they also cause a lot of harm to us, especially as a disease. I also remember studying plants. The process of photosynthesis is a very interesting process that nature has developed. Here, plants can take in the carbon dioxide that is given off by many animals, and in return, generate oxygen for us. Thus, we have a nice balanced eco system with plants and animals helping each other to keep the sytem in check.
If you've ever taken an Astronomy class, it's definitely "out of this world," literally! For the longest time, mankind has studied the cosmos, the stars, and the universe. Fortunately for our generation, we are able to explore
the planets nearby and learn much more about them than we ever knew before. I can't imagine what it will be like 1000 years from now - I'm sure by then, mankind will have colonized planets or moons. If you have a chance, you
should definitely visit NASA in Houston or NASA in Cape Canaveral. Both places are the forefront of mankind's reach to the stars.
Probably the most interesting thing to have developed in Astronomy recently was the revoking of Pluto as a planet. The new formal definition of Pluto is a "dwarf planet". One reason why Pluto has been redefined as a "dwarf planet" is because Eris, another "dwarf planet", was discovered beyond Pluto and Eris is considered larger than Pluto. This is what NASA says about Pluto's new definition:
"In 2003, an astronomer saw a new object beyond Pluto. The astronomer thought he had found a new planet. The object he saw was larger than Pluto. He named the object Eris (EER-is).
Finding Eris caused other astronomers to talk about what makes a planet a "planet." There is a group of astronomers that names objects in space. This group decided that Pluto was not really a planet because of its size and location in space. So Pluto and objects like it are now called dwarf planets."