What is really new is unknowable—by definition, the unknown can not be described or predicted. So serendipity is ubiquitous among scientific discoveries. For example, Kepler's proof for elliptical planetary orbits grew fr...
Copernicus and Kepler still believed in this outermost sphere, but in fact it became obsolete when left without its original function. This new world order is clearly expressed by the ardent supporter of Copernicus, Bruno: "As soon as we realize that the apparent celestial rotation is caused by...
Recently, the Kepler spacecraft found “22b”, a planet about six hundred light years away. It is the first planet in a “habitable zone” outside the solar system. That means the planet orbits(环绕) a star like our sun, but it is not too close to it, nor too far away. Because ...
a planet about six hundred light years away.It is the first planet in a"habitable zone"outside the solar system.That means the planet orbits a star like our Sun,but it is not too close to it,nor too far away.Because of this position,scientists say Kepler22b might have water,one of ...
How far away is Voyager 1? According to its NASA mission log, of January 2021 Voyager 1 was 14.1 billion miles from Earth. Do the Voyagers have a camera? Yes, they are perhaps the most significant instruments on board the Voyagers, as far as the public is concerned. The cameras have ...
With Kepler's fancy equations, watching the planets move around the sun, we've been able to measure the distance to planets. With parallax, we've been able to measure the distance to stars that are really far away and get a 3D map of our galactic neighbors. But we're still not really...
While Kepler's idea of a solar wind has been disproven, scientists have since discovered that sunlight does exert enough force to move objects. To take advantage of this force, NASA has been experimenting with giant solar sails that could be pushed through the cosmos by light. There are ...
What is really new is unknowable—by definition, the unknown can not be described or predicted. So serendipity is ubiquitous among scientific discoveries. For example, Kepler's proof for elliptical planetary orbits grew from his attempts to measure the areas & volumes of wine casks. ...
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Among the exoplanets catalogued so far, a few could match this water world. One such discovery is Kepler-22b. Kepler-22b, at 2.4 times Earth's radius and orbiting within its star's habitable zone, could be a water-covered planet. Credit: NASA...