it became adwarf planet. A dwarf planet is a small planet that fails the third test. The asteroid Ceres, in orbit around the Sun between Mars and Jupiter, was upgraded from asteroid to dwarf planet status. Clearing the neighbourhood means that it does not cross other planets or asteroids in...
Neptune is a planet in the same solar system as Earth. It is the furthest planet from the Sun. Neptune is approximately 17 times larger than Earth and is a gaseous planet. Key Ideas:A galaxy is any system of gas, dust, and billions of stars held together by gravitational forces. ...
How do astronomers determine the chemistry of a cool dust cloud? Give the electronic configuration for the ground state of nitrogen. What is the most metal-rich terrestrial planet? Do adiabatic parcels occur in atmosphere, in the ocean, or in both?
Any such planet situated in the right orbit stands a good chance of having liquid water on its surface, and quite possibly life, although a leading scientist involved in the project said it was unlikely to find "any little green men". 4. Developed by the French space agency, CNES, and p...
The solar system includes eight planets and one planetoid, or dwarf planet — Pluto. The inner four planets — Mercury, Venus, Earth and Mars — are called terrestrial planets; these are smaller, solid and "Earth-like." The outer four — Jupiter, Saturn, Uranus and Neptune — are termed ...
If the sun were a gaseous planet, it could not produce an electromagnetic field. From an article in the Scientific American comes this significant confession: "In 1934, Thomas G. Cowling of the University of Leeds in England proved that single, symmetrical fluid flows cannot generate magnetic ...
Deep down inside Neptune, the planet might have an actual solid surface. At the very core of the gas/ice giant is thought to be a region of rock with roughly the mass of the Earth. But temperatures at this region would be thousands of degrees; hot enough to melt rock. And the pressur...
At the time, these bolts of electricity certified Jupiter to be the only other planet besides Earth known to flaunt lightning strikes. Their evolution on the gaseous world, however, has puzzled scientists for decades. Now, a team studying five years worth of data from NASA's Juno spacecraft,...
Earth (or, "the earth") is the only planet presently known to support life, and its natural features are the subject of many fields of scientific research. Within the solar system, it is third nearest to the sun; it is the largest terrestrial planet and the fifth largest overall. Its mo...
Which planet has the strongest magnetosphere? Which Jovian planet does not have rings? What was earth like without oxygen? Do all terrestrial planets have oxygen? How does the atmosphere on Earth compare to the atmosphere of Mars? What contains dust, gas and young stars?