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Astronomy | Definition, History, Discoveries, & Facts | Britannica
Astronomy is the study of objects and phenomena beyond Earth, whereas cosmology is a branch of astronomy that studies the origin of the universe and how it has evolved. For example, the big bang , the origin of the chemical elements , and the cosmic microwave background are all subjects of cosmology.

Astronomy - Wikipedia
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 , meteoroid , asteroid , and comets .

Astronomy Magazine - Interactive Star Charts, Planets, Meteors, Comets ...
Astronomy.com is for anyone who wants to learn more about astronomy events, cosmology, planets, galaxies, asteroids, astrophotography, the Big Bang, black holes, comets, constellations, eclipses ...

Astronomy | Science News
Astronomy A neutron star collision may have emitted a fast radio burst Astronomers spotted both a fast radio burst and gravitational waves from a cosmic smashup in the same part of the sky and at...

Astronomy: Definition, history and types | Space
All astronomy is the study of different wavelengths of the electromagnetic spectrum, which comprises radio, microwave, infrared, visible, ultraviolet, X-ray and gamma rays. To get the full picture...

What is Astronomy? | AMNH
What is Astronomy? 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.

Astronomy for Beginners | Night Sky Facts, FAQs & Resources - Sky ...
Let this page serve as your guide to astronomy for beginners. Check out what's up in the night sky this week. Get advice for buying your first telescope. And find the best coverage you’ll find online of upcoming celestial events such as eclipses and meteor showers.

Astronomy | NASA
the study of stars, planets and space. Sentences: NASA uses telescopes to study astronomy. To study astronomy, you might have to stay up late to see the stars. Related Links: Astronomy Picture of the Day. Return to NASA's Picture Dictionary.

Astronomy Picture of the Day
Astronomy Picture of the Day. Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2023 May 25.

Astronomy - Prehistoric Monuments, Ancient Babylonia, and Goal-Year ...
History of astronomy. Astronomy was the first natural science to reach a high level of sophistication and predictive ability, which it achieved already in the second half of the 1st millennium bce.