Quotes About Earth

We gotta terraform Earth before we get distracted by Mars

and large outdoor furnaces where the ore was refined, and mounds of earth in long rows where quicksilver was being used to extract silver from lower-grade ore. To Jack it was a toss

the terminator—not the robotic assassin of moviedom, but the line between night and day through which our planet incessantly rotates.

Richard felt no guilt about this, since he had heard that Google Earth, in turn, was based on an idea from some old science-fiction novel.

I assure you, there needs to be no place on Earth where people cannot have access to clean, pure water—and whatever else is needed to "make life work"—if the people of Earth simply cared enough about each other.

You know that passage in the Bible that says, "And the meek shall inherit the Earth"? Always wondered if that was mistranslated. Perhaps it actually says, "And the geek shall inherit the Earth.

Time to get cosmic. There are more stars in the universe than grains of sand on any beach, more stars than seconds have passed since Earth formed, more stars than words and sounds ever uttered by all the humans who ever lived.

The cosmic perspective shows Earth to be a mote. But it's a precious mote and, for the moment, it's the only home we have.

The four most common chemically active elements in the universe—hydrogen, oxygen, carbon, and nitrogen—are the four most common elements of life on Earth. We are not simply in the universe. The universe is in us.

In 5-billion years the Sun will expand & engulf our orbit as the charred ember that was once Earth vaporizes. Have a nice day.

Long ago Mars was an oasis of running water.Today the Martiansurfaceis a sterile,barren desert. Here on Earth, who knows what climactic knobs we unwittingly turn,which might one day render Earth as dry and lifeless as Mars. (From the cover of Old Poison by Joan Francis)

Mount Everest is about as tall as a mountain on Earth can grow before the lower rock layers succumb to their own plasticity under the mountain's weight.

Complaints about the demise of society and the "youth of today" also tend to be timeless. Consider this pronouncement, inscribed on an Assyrian tablet circa 2800 B.C.: Our earth is degenerate these days . . . bribery and corruption abound, children no longer obey their parents, every man wants to write a book, and the end of the world is evidently approaching.

On Friday the 13th, April 2029, an asteroid large enough to fill the Rose Bowl as though it were an egg cup will fly so close to Earth that it will dip below the altitude of our communication satellites. We did not name this asteroid Bambi. Instead, we named it Apophis, after the Egyptian god of darkness and death.

Science literacy is being plugged into the forces that power the universe. There is no excuse for thinking that the Sun, which is a million times the size of Earth, orbits Earth.

The Hubble Space Telescope has spotted aurora near the poles of both Saturn and Jupiter. And on Earth, the aurora borealis and australis (the northern and southern lights) serve as intermittent reminders of how nice it is to have a protective atmosphere.

From out there on the moon, international politics look so petty. You want to grab a politician by the scruff of the neck and drag him a quarter of a million miles out and say, "Look at that!" —EDGAR MITCHELL, APOLLO 14 ASTRONAUT, 1974

The day gets about one second longer every 67,000 years.

If all the molecules on Earth were stacked on each other end-to-end, everything on Earth would die.

The one we call Earth formed in a kind of Goldilocks zone around the Sun, where oceans remain largely in liquid form.

What Rømer discovered was that when Earth was closest to Jupiter, Io disappeared about 11 minutes earlier than expected, and when Earth was farthest from Jupiter, Io disappeared about 11 minutes later. Rømer reasoned that Io's orbital behavior was not likely to be influenced by the position of Earth relative to Jupiter, and so surely the speed of light was to blame for any unexpected variations.

Had Earth been much closer to the Sun, the oceans would have evaporated. Had Earth been much farther away, the oceans would have frozen.

Si la velocidad orbital de la Tierra fuera mayor que la raíz cuadrada del doble de su velocidad actual, nuestro planeta alcanzaría una «velocidad de escape» y, como cabe suponer, escaparía del sistema solar. Podemos

Had Earth been much closer to the Sun, the oceans would have evaporated. Had Earth been much farther away, the oceans would have frozen. In either case, life as we know it would not have evolved.