Astronomers study planets, stars, and other celestial bodies.
They use ground-based equipment, such as optical telescopes, and space-based equipment, such as the Hubble Space Telescope.
Some astronomers study distant galaxies and phenomena such as black holes and neutron stars..
By studying the cosmos beyond our own planet, we can understand where we came from, where we are going, and how physics works under conditions which are impossible to recreate on Earth..
Astronomy is the study of everything in the universe beyond Earth's atmosphere.
That includes objects we can see with our naked eyes, like the Sun , the Moon , the planets, and the stars .
It also includes objects we can only see with telescopes or other instruments, like faraway galaxies and tiny particles..
The earliest sophisticated astronomy arose in ancient Babylonia, in central Mesopotamia, and there are three reasons why it happened there rather than, say, in ancient Greece..
Why do stars twinkle? Why are the stars so far away? How far is the closest star? What is the brightest star in the sky?.
Although astronomy is a sub-discipline of physics, it can also be considered 'applied physics', as it applies the scientific hypotheses and basic rules of physics to further our understanding of space..
The workforce of Astronomers \& physicists in 2021 was 14,449 people, with 17.6% woman, and 82.4% men..
Astronomy cannot be divided solely into four types.
It is a broad discipline encompassing many subfields including observational astronomy, theoretical astronomy, planetary science, astrophysics, cosmology and astrobiology..
How does astronomy help answer the question 'what are we'? It locates us in space and time.
It shows how we fit into the physical processes that govern the Universe..
In the past, astronomy has been used to measure time, mark the seasons, and navigate the vast oceans.
As one of the oldest sciences astronomy is part of every culture's history and roots.
It inspires us with beautiful images and promises answers to the big questions..
Learn the Night Sky with the Unaided Eye
Astronomy is an outdoor nature hobby, so the best way to begin is to go out into the night and learn the starry names and patterns overhead.
Buy yourself an inexpensive planisphere, which shows the constellations visible at any time throughout the year..
Mesopotamia.
The earliest sophisticated astronomy arose in ancient Babylonia, in central Mesopotamia, and there are three reasons why it happened there rather than, say, in ancient Greece..
This is the "Ask an Astrophysicist" service of the Imagine the Universe web site..
If you're interested in famous astronomers, you've likely heard of Copernicus, Galileo, Stephen Hawking, Carl Sagan, and Albert Einstein.
These men were brilliant and giants in their field..
Cosmologists and extragalactic/galactic, planetary, and stellar astronomers study the creation, evolution, and possible futures of the universe and its galaxies, stars, planets, and solar systems..
Question: How often, approximately, is Halley’s Comet visible from Earth (in years)?\tAnswer: Halley’s comet appears in the night sky approximately every 75 years. Its next appearance will be in 2061.
Astronomy is a close-knit field where you will get the opportunity to work with many people. Professional astronomers are motivated by curiosity and a deep desire to understand some of the grandest and most beautiful phenomena in the universe
As well as a desire to share these wonders with others.
What I like about astronomy is that it is one of the few hobbies where the more
The merrier. If everyone used a telescope
Even all at once
It wouldn't detract from each individual's enjoyment. The same can't be said for golf
