Stars and Galaxies

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What is the Electromagnetic Spectrum?

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The Electromagnetic Spectrum is the range of all types of electromagnetic radiation, including visible light, radio waves, X-rays, and more. It helps us understand various properties of stars.

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What can the Electromagnetic Spectrum help us determine about stars?

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It can help us determine distance, temperature, and chemical composition of stars.

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Which star is closest to Earth?

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Our Sun is the closest star to Earth.

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What is a Supernova?

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A Supernova is a powerful explosion that occurs at the end of a massive star's life cycle, resulting in the star's dramatic increase in brightness.

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What happens to a massive star after a Supernova?

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After a Supernova, the core of the massive star may collapse into a Black Hole or a Neutron Star.

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What is a Black Hole?

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A Black Hole is a region in space where the gravitational pull is so strong that nothing, not even light, can escape from it.

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Why do stars appear smaller than the Sun?

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Stars appear smaller than the Sun because they are much farther away from Earth.

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What is a Galaxy?

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A Galaxy is a massive system that consists of stars, stellar remnants, interstellar gas, dust, and dark matter, bound together by gravity.

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What is the Milky Way?

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The Milky Way is the galaxy that contains our Solar System, and it is a barred spiral galaxy.

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What is the difference between a star and a planet?

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A star is a luminous celestial body made of plasma that generates its own light, while a planet is a celestial body that orbits a star and does not produce its own light.