Astronomers
Astronomers have contributed greatly to our understanding of physics and motion. In this section you can learn all about famous astronomers and what each of them has contributed to our understanding of space. See more »
what's inside: astronomy channel
Astronomy is a broad discipline covering all facets of astrophysics. In this section you can learn about the origins of the universe, black holes and other astronomical phenomena.
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Astronomy Terms
Astronomy terms are used to describe the various phenomena in space. In this section you can learn what every astronomy term means and how it helps us to better understand the cosmos. See more »
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Constellations
Constellations are groupings of stars that, when viewed from Earth, form distinct shapes. Constellations have been around since the dawn of recorded history. In this section you will learn all about constellations and their histories. See more »
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Observatories
Observatories are structures designed and equipped for observing astronomical events. In this section you will learn all about famous observatories and the role they play astronomy. See more »
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Stars
Stars are celestial bodies made up of hot gases. Stars radiate energy that comes form thermonuclear reactions. In this section you will learn all about stars and their importance in the universe. See more »
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The Solar System
In the Solar System Channel, you can explore the planets and celestial objects around our own sun. Learn about topics such as Mars, Jupiter and the Moon. See more »
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featured articles
How the Big Bang Theory Works
The big bang theory is well-known, but there are many misconceptions about it. Like what? Let's start with this one: There was no bang.
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videos: astronomy
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Our Amazing Solar System
Some of the most interesting objects in our solar system are also the smallest or largest. In addition to the sun, planets, and moons, our solar system has a variety of small objects such as asteroids, comets, stars, meteors, and moons. These have affected what has happened on Earth in many ways.
Is there really water on Mars?
Until recently, most people assumed that if Mars had liquid water, it no longer did and hadn't for quite some time. But scientists have recently noticed some anomalies in photos of Mars that may suggest there is water. Could there be life, too?
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