The Big Bang was an explosion that created the universe.
100
Which planet did scientists say, that there could be life there, because it has water and trees?
Mars.
200
Is Pluto a planet?
No. Scientists figured out that Pluto is just a ball of gas.
200
What are galaxies?
A system of billions of stars, gas and dust, held together by gravitational attraction
200
What is a star?
A fixed luminous point in the night sky that is a large remote incandescent body like the sun.
200
How did the Universe look like before the Big Bang?
The Universe was just an empty hollow black space with dust.
200
Are there any other tiny types of life in other planets?
Yes. Such as bacteria, fish and diseases.
300
How old is Earth?
4.54 billion years old
300
Is the galaxy Milky way, home to other planets?
Yes. The planets we know are: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune. But there are other planets we dont know are also in the Milky way.
300
How long back did the sun form?
5 billion years ago, (5,000,000,000)
300
What did the Bing Bang contain?
Since Earth first was full of molten lava, bacteria and dust, Scientist predict the Big Bang had electricity, fire, dust, bacteria and water.
300
Why do most Scientists think that 98% of life is dangerous?
Whenever Scientists launch something in space, one of them return damaged or broken. Scientists think maybe outside life assume that the things they launch are maybe trying to harm them that's why it returns damaged. Whenever an astronaut goes to planets they return saying "Nothing there" but Scientists think that outside life is probably hiding.
400
Where did the name "Planet" come from?
The word "Planet" came from Latin and Ancient Greece. "Planeta" means wanderer, as the planets wander around the sun.
400
Why is the galaxy we are living in called the Milky way?
The galaxy we are living in is called the Milky way because it is milky white in the centre and other colors on the outside.
400
How many years back did the stars form?
Ten billion years ago, (10,000,000,000)
400
Where did the Big Bang occur?
The Big Bang occured right at the center of space with an explosion so loud! Scientists have found this out because when they were investigating in space with a vibration tool. More vibration occured at the left side (Milky Way is at the left side) while no sound came at the centre. So that means our galaxy is the youngest, while one of the galaxies at the centre is the oldest, so since the Big Bang happened at the centre,that galaxy is the oldest.
400
What is the Black Hole?
The Black Hole is an empty hole in space that snacks on planets. The Black Hole's gravity is so powerful that nothing can escape from its force. The Black Hole sucks up planets till its full, then sleeps for 5 years, then awakens to snack again! There are about a billion black holes in the universe. Imagine a black hole snacking on earth! scary!!
500
What are planets made of?
Planets are made of gas, water, stiff fiber, dust, melted hot rocks and iron and nickel.
500
How many galaxies are there in the universe?
There are 100,000,000,000 galaxies in the Universe.
500
How many stars are there in our galaxy?
There are 300,000,000,000 stars in our galaxy.
500
How long back did the Big Bang happen?
15 billion years ago, (15,000,000,000)
500
How did scientists figure out that there is life on other planets?
The scientists sent out 4 space robots to Mars to investgate if there is really life there. After an hour when the robots came back, 3 robots brought chewed up dry leaves and hard droppings, while 1 robot was not there. When they checked the camera, the other robot was destroyed with scratch marks and missing wires.