stars
what is a star?
a natural luminous body visible in the sky especially at night
how many planets are in our solar system?
There are eight planets in our Solar System
what coulor are black holes?
black
what is the big bang?
how astronomers explain the way the universe began
Who was the first man in space?
Yuri Gagarin
why do stars only come out at night?
when the sky is dark, the light of the stars can be seen
list all the planets in our solar system
Mercury Venus earth mars Jupiter satern uranus neptune
what happens if a black hole dies?
they turn into white holes
what did the big bang do?
The Big Bang is the best model used by astronomers to explain the creation of matter, space and time 13.7 billion years ago
When did the first spacecraft go into space?
October 4, 1957 at 7:28 PM
what gasses are needed to produce a new star?
No specific gases are actually needed
what is the closest planet to the sun?
mercury
where does a black hole take you?
it becomes isolated from the rest of space-time
What is the evidence for the Big Bang?
Hubble's discovery in the 1920s of a relationship between a galaxy's distance from Earth and its speed; and the discovery in the 1960s of cosmic microwave background radiation
Which country has the most space exploration?
USA
why do stars twinkle?
because of the effects of our atmosphere
where do comets most arrive from?
Most comets originate in the Oort cloud or in the Kuiper belt
what happens when black holes collides?
hey will merge to become one bigger black hole
What made a big bang?
the Universe expanded from an extremely small, extremely hot, and extremely dense state
What is the biggest problem in space exploration?
space dust
what are constellations?
a group of stars that make an imaginary shape in the night sky
why is pluto not a planet anymore?
it did not meet the three criteria the IAU uses to define a full-sized planet.
Are there different types of black holes?
stellar-mass, supermassive, and intermediate-mass
Did the Big Bang make a noise?
the Big Bang made no sound whatsoever
What is the issue of space exploration?
space radiation, isolation and confinement, distance from Earth, gravity (and the lack of it), and closed or hostile environments