parramatta marist yr9
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THE HUBBLE SPACE TELESCOPE
Research and gather information from the internet about the Hubble Space Telescope. Use the following questions as the basis for your journal entry:
- What was Hubble’s involvement in space research?
- He discover many things
- What does the telescope do?
- Look into deep space
- Where can the telescope be found?
- In space
- What is Hubble’s law?
- The further away from the earth a galaxy is the faster must be going
1 A nebula is a vast cloud of gas and dust in space.
2 The main fuel in stars is hydrogen.
3 Burns hydrogen, red giant, burns helium, white dwarf
4 The limited hydrogen fuel will run out and our Sun will expand to form a red giant and eventually collapse to form a white dwarf. A star with a mass of ten Suns uses up its fuel more rapidly and becomes a blue supergiant and then expands to form a red supergiant which collapses, causing a supernova, resulting in a neutron star.
5 A pulsar is a rapidly rotating neutron star with a strong magnetic field. It emits radio waves that sweep across space.
6 A black hole is formed by the collapse of a star the size of many Suns.
7 We cannot see black holes because light cannot escape from them. We know they exist because of the X-rays emitted by them, and the behaviour of nearby stars.
8 The elements were produced when stars collapsed.
9 Blue supergiant, red supergiant, supernova, neutron star
10 You could not lift it.
11 Our region of the galaxy rotates around (rather than falling into) the black hole.
12 Jocelyn Bell Burnell discovered pulsars in outer space in 1967 by actually chance! Her and Anthony Hewish were studying distant galaxies, when suddenly their telescope that was pointed in a certain point in the sky detected a pulsed signal. Fisrt scientist and astronemers thought of this signal tobe from an extra-terrestrial civilisation. When the signals were establisked that they were not from that origin, they called a pulsar as its signals are pulsed.
13
a) Black Holes: A black hole froms when a massive enough star collapses and it becomes even more dense than a neutron star to from a balck hole. It is o dense that even light cannot escape its gravity.
b) Some features that a black hole has are:
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Super strong gravity
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emits Tell-Tale X-rays
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Sucks up anything
Research more about the Hubble Space Telescope. Gather information about:
a) Hubbles involvement in space research – Edwin Hubble’s involvement in space research was the fact that he was an astronomer who studied all galaxies except the Milky Way.
b) What the space telescope does – it is a research tool for astronomy which Edwin Hubble invented.
c) Where is it – On the Earth’s orbit.
d) What Hubble’s constants is – Hubble’s constant is the value of h
