The first documented records of systematic astronomical observations date back to the Assyro-Babylonians around 1000 BCE.
From this cradle of civilisation in Mesopotamia – in the southern part of present-day Iraq – astronomers had built up knowledge of the celestial bodies and recorded their periodic motions..
.
1) One million Earths could fit inside the Sun – and the Sun is considered an average-size star. .
2) For years it was believed that Earth was the only planet in our solar system with liquid water.
More recently, NASA revealed its strongest evidence yet that there is intermittent running water on Mars, too.
Astronomy is the oldest of the natural sciences, dating back to antiquity, with its origins in the religious, mythological, cosmological, calendrical, and astrological beliefs and practices of prehistory: vestiges of these are still found in astrology, a discipline long interwoven with public and governmental astronomy .
Like a ship in the empty ocean, astronomers on Earth can turn their telescopes to peer 13.8 billion light-years in every direction, which puts Earth inside of an observable sphere with a radius of 13.8 billion light-years.
The word "observable" is key; the sphere limits what scientists can see but not what is there..
.
1) One million Earths could fit inside the Sun – and the Sun is considered an average-size star. .
2) For years it was believed that Earth was the only planet in our solar system with liquid water.
More recently, NASA revealed its strongest evidence yet that there is intermittent running water on Mars, too.
Fascinating Astronomy Facts.
Even though our solar system seems like a pretty big place, it represents only a tiny fraction of the entire universe.
Scientists estimate that our galaxy has approximately 100 billion solar systems, and more than 125 billion galaxies exist in the universe..
.
1) One million Earths could fit inside the Sun – and the Sun is considered an average-size star. .
2) For years it was believed that Earth was the only planet in our solar system with liquid water.
More recently, NASA revealed its strongest evidence yet that there is intermittent running water on Mars, too.
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.
In astronomy, the Universe is our laboratory.
Early Observations:
Early people noticed constellations of stars in the sky that looked like animals and people, and made up stories about what they thought they saw.
In fact, the oldest records we have of astronomical observations are 30,000-year-old paintings found on the walls of caves..
Like a ship in the empty ocean, astronomers on Earth can turn their telescopes to peer 13.8 billion light-years in every direction, which puts Earth inside of an observable sphere with a radius of 13.8 billion light-years.
The word "observable" is key; the sphere limits what scientists can see but not what is there..
The first documented records of systematic astronomical observations date back to the Assyro-Babylonians around 1000 BCE.
From this cradle of civilisation in Mesopotamia – in the southern part of present-day Iraq – astronomers had built up knowledge of the celestial bodies and recorded their periodic motions..
Astronomy is a natural science that studies celestial objects and phenomena.
It uses mathematics, physics, and chemistry in order to explain their origin and evolution.
Objects of interest include planets, moons, stars, nebulae, galaxies, meteoroids, asteroids, and comets..
Like a ship in the empty ocean, astronomers on Earth can turn their telescopes to peer 13.8 billion light-years in every direction, which puts Earth inside of an observable sphere with a radius of 13.8 billion light-years.
The word "observable" is key; the sphere limits what scientists can see but not what is there..
.
1) One million Earths could fit inside the Sun – and the Sun is considered an average-size star. .
2) For years it was believed that Earth was the only planet in our solar system with liquid water..
.
1) One million Earths could fit inside the Sun – and the Sun is considered an average-size star. .
2) For years it was believed that Earth was the only planet in our solar system with liquid water..
.
1) One million Earths could fit inside the Sun – and the Sun is considered an average-size star. .
2) For years it was believed that Earth was the only planet in our solar system with liquid water.
More recently, NASA revealed its strongest evidence yet that there is intermittent running water on Mars, too.
The first documented records of systematic astronomical observations date back to the Assyro-Babylonians around 1000 BCE.
From this cradle of civilisation in Mesopotamia – in the southern part of present-day Iraq – astronomers had built up knowledge of the celestial bodies and recorded their periodic motions..
.
1) One million Earths could fit inside the Sun – and the Sun is considered an average-size star. .
2) For years it was believed that Earth was the only planet in our solar system with liquid water..
Here are astronomy trivia questions and answers.
They will test your knowledge of stars
Constellations
and other interesting aspects of space.
What does space smell like? Hot metal
and barbecue.
How old is the Universe? 13.7 billion years old.
How many constellations are there? 88.
Which planet has a hexagonal-shaped storm? Saturn.
Beyond our solar system lie innumerable stars
And many other phenomena that have yet to be explored.
Astronomy and astrophysics majors study the universe and what makes it work.
Astronomy majors need a strong background in physics as well as skills in using high-level instruments for observing outer space.
000 miles per hour.
What is the largest type of star in the universe? Red supergiant stars.
They have the largest volume of all the stars in the known universe and are classified as K or M spectral types.
Here are 20 interesting astronomy facts that you might not know. 1.
Uranus Is Tilted Ah
Uranus.
It’s every school child’s favorite planet.
But crude jokes aside
the planet is pretty fascinating.
Among the most interesting aspects of Uranus is that it is titled completely on its side.
