🌌Cosmology is the study of the universe and its origins.
🔭The modern form of cosmology dates back to the discovery of the Big Bang.
✨The universe is roughly isotropic and homogeneous on large scales.
⚛️Gravity is the dominant force on these large scales, pulling matter together.
❓The precise behavior of matter in the universe is still a mystery.
What is cosmology?
—Cosmology is the study of the universe, including its origins, evolution, and large-scale structure.
When did modern cosmology begin?
—Modern cosmology began with the discovery of the Big Bang in the early 20th century.
What does it mean for the universe to be isotropic and homogeneous?
—Isotropic means the universe looks the same in every direction, while homogeneous means it looks the same at every place on large scales.
What is the dominant force on large scales in the universe?
—Gravity is the dominant force on large scales, pulling matter together and shaping the structure of the universe.
Are there still unknowns in cosmology?
—Yes, there are still many unanswered questions in cosmology, such as the nature of dark matter and dark energy, and the ultimate fate of the universe.
00:17Cosmology is the study of the universe and its origins.
01:20Modern cosmology dates back to the discovery of the Big Bang.
07:11The universe is roughly isotropic and homogeneous on large scales.
08:59Gravity is the dominant force on these large scales, pulling matter together.
11:43The precise behavior of matter in the universe is still a mystery.
13:19The universe is not static; matter does have gravitational forces on it.
