Примери за използване на These comets на Английски и техните преводи на Български
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Ironically, despite being so close, these comets will not be very bright.
These comets look like the ones we saw earlier.
And some scholars believe there's a connection between the look of the flying feathered serpent and these comets.
One or more of these comets strike the Earth causing a mass extinction.
According to this theory, on a previous pass(about 65 million years ago), many of these comets struck the Earth.
Ironically these comets, so nearby, will not be very bright.
Although we now think they formed in similar locations around the young Sun,the orbits of some of these comets could be disturbed- for instance by Jupiter- which explains the different orbits.”.
As these comets come by, most of them get knocked out of the solar system by Jupiter.
One NASA scientist, Michael Mumma,wonders if these comets were the source of the water in Earth's oceans.
These comets can take as long as 30 million years to complete one trip around the Sun.
If such nuclei are common, why have none of these comets been seen with perihelia near the Sun?
The idea that these comets describe elongated ellipses is nonsense, but we need not go into that just now.
The Oort cloud was first theorized in 1950 when Jan Oort observed that there were no comets with orbits that indicate they come from outside the solar system,that there is a strong tendency for comet orbits to take them out as far as 50,000 AU(50,000 times the distance between the earth and the sun), and that these comets arrive and depart randomly in all directions.
Formed at higher temperatures, these comets could have a lower proportion of heavy water more closely matching our oceans.
These comets, known as 266P/Christensen and 335P/Gibbs, have clouds of hydrogen gas millions of kilometres in diameter surrounding them.
In fact, we know them today as comets… andit's thought that these comets may be responsible… for bringing some of these more complicated molecules… into the inner solar system.
Méchain's memoir on these comets was presented to the Academy for the Grand Prix of 1782 and in it he showed, unexpectedly, that they were not two appearances of the same comet but indeed different comets. .
The important thing here to note is that in the meantime, the four and a half billion years, these comets have been sitting on the outside of the solar system, and haven't changed-- deep, frozen versions of our solar system.
And Van Flandern traced back all these comets and showed that they all actually… you dial it back, they all come to a single point of origin- like that was where the oceans went to.
A lot of the material in the outter Solar System, these comets fell into the inner Solar System where they collided with the inner planets and the moon, creating the craters that we see today.
Meteorite studies also conclude that these comet fragments were once part of a larger planet.
Besides these comet collisions, there is yet another type of crater on the planet.
These comet crumbs are usually the size of a grain of sand or a pea, so they tend to burn up entirely before striking Earth's surface.
Some of these comet observations are described in works by his son, Cornelius Gemma Frisius, who was born in 1533 and went on to become professor of medicine and astronomy at Louvain.
What's more, startling new evidence suggests that these unusual comets may not only have delivered water to Earth.
Millions of these watery comets and asteroids came flying into the inner solar system. And some of them smashed into Earth.
In hisaccelerating love, he couldn't tell if these were comets, wrecks of galactic ships, or just ordinary cosmicdust.
Perhaps the origin of the Earth's oceans… could be these main-belt comets… which have high concentrations of water… and other organic materials.