Our Universe MCQ – Chapter I

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Our Universe MCQ – Chapter I

1 How old is the universe?

13.8 billion years

2 How do they know the universe is 13.7 billion years old?

By measuring the speed and distance of galaxies and by measuring ages of the oldest star clusters

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3 How do we know the age of the universe?

By measuring the speed and distance of galaxies and by measuring ages of the oldest star clusters

4 How old is the universe NASA?

13.8 billion years

5 How much of the universe can we see?

Only Four Percent

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6 What is the beginning of time?

Big Bang

7 When Big Bang had happened?

About 15 billion years ago

8 How old is the oldest star in the universe?

13.2 billion years

9 How much of space have we explored?

Only Four Percent

10 Will the universe end?


11 What is the name of event that will end universe?

Big Crunch

12 What is Big Crunch?

End of universe

13 How universe will end?

Through Big Crunch. Galaxies will collapsed back

14 What is horology?

Study of devices used for the measurement of time

15 How fast is the universe expanding?

72 Kilometer per Second

16 How vast is our universe?

The diameter of the observable universe is about 93 billion light-years (28 billion parsecs)

17 How many galaxies are there in the universe?

About 200 billion to 2 trillion galaxies (observable universe)

18 How old is the youngest star?

No one knows. Stars are continuously formed

19 What is the oldest planet in the universe?

A gas giant plane t, twice the size of Jupiter located 5,600 light-years away in Scorpius constellation

20 How far is farthest star?

13.4 billion light years

21 What is the farthest star known to man?


22 What is the farthest planet ever discovered?

The unconfirmed planet KOI-5889.01 is over 5,000 light-years distant. The confirmed and possibly habitual is Kepler-443b, at 2,540 light-years distant.

23 What is the name of the closest Earth like planet?

A rocky planet located in the habitable zone of Proxima Centauri about 12 light years away

24 How much is the universe expanding per second?

72 Kilometer per Second

25 What is the name of our galaxy?

Milky Way Galaxy


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