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Astronomy / Lessons

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2
Celestial Objects
  • Exercise
  • Beginner
  • English

Our universe contains an amazing array of celestial objects, sometimes referred to as celestial bodies or astronomical objects. Though most of the observable cosmos is composed of empty space, this cold, dark void that is sparsely populated by a number of astronomical objects that range from the common to the bizarre. Known collectively by astronomers as celestial objects, celestial bodies, astronomical objects, and astronomical bodies, they are the stuff that fills the empty space of the universe. Most of us are familiar with the stars, planets, and moons. But beyond these everyday celestial objects, lies an amazing collection of other wondrous sights. There are colorful nebulae, delicate star clusters, and massive galaxies. Pulsars and quasars add to the mystery, while black holes swallow up every bit of matter that comes too close. And now, the search is on to identify the mysterious, invisible objects known as dark matter. Join Sea and Sky for an intriguing journey as we discover these amazing celestial objects.

Andrei Scherbak
Andrei Scherbak
4.762 reviews

Last viewed

0
2
Celestial Objects
  • Exercise
  • Beginner
  • English

Our universe contains an amazing array of celestial objects, sometimes referred to as celestial bodies or astronomical objects. Though most of the observable cosmos is composed of empty space, this cold, dark void that is sparsely populated by a number of astronomical objects that range from the common to the bizarre. Known collectively by astronomers as celestial objects, celestial bodies, astronomical objects, and astronomical bodies, they are the stuff that fills the empty space of the universe. Most of us are familiar with the stars, planets, and moons. But beyond these everyday celestial objects, lies an amazing collection of other wondrous sights. There are colorful nebulae, delicate star clusters, and massive galaxies. Pulsars and quasars add to the mystery, while black holes swallow up every bit of matter that comes too close. And now, the search is on to identify the mysterious, invisible objects known as dark matter. Join Sea and Sky for an intriguing journey as we discover these amazing celestial objects.

Andrei Scherbak
Andrei Scherbak
4.762 reviews

Lessons in other subjects

0
34
Numbers
  • English
  • Exercise
  • Beginner
  • English

Match the pairs, learn numbers in English

Oleg Ivanov
Oleg Ivanov
58 reviews
0
29
Harry Potter day
  • Exercise
  • Pre-Intermediate
  • English

Glow marathon day about Harry Potter films

Darina Gribanova
Darina Gribanova
527 reviews
0
27
Traveling to Spain
  • Exercise
  • Intermediate
  • English

Get ready for your trip to Spain with this class- pluses, minuses, food and rules

Darina Gribanova
Darina Gribanova
527 reviews
0
27
Some vs Any
  • English
  • Exercise
  • Elementary
  • English

Some / Any / Review how to use 'some' and 'any' here. Online exercises for using confusing words correctly. Have a try!

Oleg Ivanov
Oleg Ivanov
58 reviews
0
19
Work
  • English
  • Video lessons
  • Intermediate
  • English

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Darina Gribanova
Darina Gribanova
527 reviews
0
15
Tourism
  • English
  • Theory with exercises
  • Pre-Intermediate
  • English

In this class we will discuss tourism and manners and revise present perfect

Maria  Nekrasova
Maria Nekrasova
58 reviews
0
15
lesson 2
  • English
  • Theory with exercises
  • Elementary
  • English

ordinal numerals and cardinal numbers

Anna Snim
Anna Snim
11 reviews
0
15
Чтение текста "Laboratory"
  • Reading lessons
  • Elementary
  • English

Чтение текста для уровня Elementary, в коце вопросы на проверку понимания текста

Анжелика Луговская
Анжелика Луговская
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13
Biography of Alexander Pushkin
  • Theory with exercises
  • Upper Intermediate
  • English

Alexander Sergeyevich Pushkin ( 6 June [O.S. 26 May] 1799 – 10 February [O.S. 29 January] 1837) was a Russian poet, playwright, and novelist of the Romantic era who is considered by many to be the greatest Russian poet and the founder of modern Russian literature.

Eugeniia Klimutina
Eugeniia Klimutina
4.945 reviews