Answer:
Hydrogen in the core of the star is converted to helium by nuclear fusion. When the hydrogen supply in the core begins to run out, and the star is no longer generating heat by fusion, the core becomes unstable and contracts.
Answer: When asteroids enter the atmosphere of Earth or any other planet, they are called meteorites. Typically, asteroids are too small to form a circular shape, unlike dwarf planets or comets.
Explanation:
Why are meteoroids not considered dwarf planets?
<em>Key difference: A dwarf planet is “a celestial body in direct orbit of the Sun that is massive enough for its shape to be controlled by gravitation, but that unlike a planet has not cleared its orbital region of other objects.” An asteroid, on the other hand, is a large chunk of rock that orbits around the sun.</em>
Initially if you could make sure that after you blow up an asteroid you will end ... The problem here lies in the fact that we know little about the internal .... A grain of dust is enough to deflect a billiard ball by a large span, given ...To blow up an asteroid with a nuclear bomb would be a major undertaking. ... An asteroid like her would spell big trouble for our planet if she ever got the notion ..Luckily for us, asteroids the size of Bennu, and giant asteroids like the one ... They enter our atmosphere as meteors, where many blow up in mid-air; ... and tracks new objects and will issue warnings about possible impacts.
Explanation:
Secretary of State John Foster Dulles defined the Middle East as "the area lying between and including Libya on the west and Pakistan on the east, Syria and Iraq on the North and the Arabian peninsula to the south, plus the Sudan and Ethiopia."
