Quotes About Astronomy

Black holes might be useful for getting rid of garbage or even some of one's friends.

in 1992 came the first confirmed observation of a planet orbiting a star other than our sun.

the North Pole, but to someone looking from the equator, it appears to lie just at the horizon. From the difference in the apparent position of the North Star in Egypt and Greece, Aristotle even quoted an estimate that the distance

A simpler model, however, was proposed in 1514 by a Polish priest, Nicholas Copernicus. (At first, perhaps for fear of being branded a heretic by his church, Copernicus circulated his model anonymously.) His idea was that the sun was stationary at the center and that the earth and the planets moved in circular orbits around the sun.

the universe expanded by a factor of 1,000,000,000,000,000,000,000,000,000,000 in .00000000000000000000000000000000001 second. It was as if a coin 1 centimeter in diameter suddenly blew up to ten million times the width of the Milky Way.

The fact that light travels at a finite, but very high, speed was first discovered in 1676 by the Danish astronomer Ole Christensen Roemer.

Our modern picture of the universe dates back to only 1924, when the American astronomer Edwin Hubble demonstrated that ours was not the only galaxy. There were in fact many others, with vast tracts of empty space between them.

In space, no one can you scream; an in a black hole, no one can see you disappear

The microwave background indicated that the universe had had a hot, dense stage in the past.

In space, no one can hear you scream; and in a black hole, no one can see you disappear.

People have searched for mini black holes of this mass, but have so far not found any. This is a pity because, if they had, I would have got a Nobel Prize.

But physics and astronomy offered the hope of understanding where we came from and why we are here. I wanted to fathom the depths of the universe. Maybe I have succeeded to a small extent, but there's still plenty I want to know.

Aristarchus suspected that this was the case and believed that the stars we see in the night sky are actually nothing more than distant suns.

the light that we see from distant galaxies left them millions of years ago, and in the case of the most distant object that we have seen, the light left some eight thousand million years ago. Thus, when we look at the universe, we are seeing it as it was in the past.

Model Ptolemeus diterima di gereja Kristen sebagai gambaran alam semesta yang sesuai dengan Kitab Suci, karena punya kelebihan yaitu menyisakan banyak ruang di luar lingkaran bintang-bintang tak bergerak untuk tempat surga dan neraka.

contains on average some one hundred billion stars. If a star were a grain of salt, you could fit all the stars visible to the naked eye on a teaspoon, but all the stars in the universe would fill a ball more than eight miles wide.

Our modern picture of the universe dates back to only 1924, when the American astronomer Edwin Hubble demonstrated that ours was not the only galaxy.

There is a black hole with a mass of about four million times that of the Sun at the centre of our Milky Way galaxy.

A black hole is a region where gravity is so strong that light cannot escape.

FIGURE 3.1 Stars

Astronomy defined our home as a small planet tucked away in one corner of an average galaxy among million; biology took away our status as paragons created in the image of God; geology gave us the immensity of time and taught us how little of it our own species has occupied.

Thus, physics and astronomy relegated our world to a corner of the cosmos, and biology shifted our status from a simulacrum of God to a naked, upright ape.

M-O-O-N Spells moon

the blast signatures of a detonated supernova and that of a nuclear bomb are identical.