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Stars seem to be, but they don't have big and/or unstable atoms such as most radioactive elements have. They release sub atomic units when their atoms fuse, along with rays such as gamma rays, which is why they can seem to be similar to other radioactive things.
Some planets with atmostpheres that are ionised by ionising rays can also be similar to radioactive things perhaps.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoAll planets are radioactive, considering that they are all formed from the same interstellar dust, which is radioactive.
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What three element symbols were named for planets?
None. Although Mercury, Uranium and Plutonium might seem to be named after planets they were not. They were named after ancient deities.
In what direction does the sun moon and stars move across the sky?
It is actually the Earth that moves, not the stars, but from the surface of the earth it appears that the stars are moving. Stars rise in the east and set in the west, rotating around an apparent "pole" formed by the North Staplus.
Two elements found in hydrocarbons?
simple as it may seem, Hydrogen and Carbon
What are substances that do not seem to dissolve called?
Substances that do not dissolve are insolubles, because they are not soluble they do not dissolve.
What is the difference between a country mile and a mile?
There is no difference. Country Miles just seem longer.
Do all planets have heavenly bodies?
oh yes, all the way, they are SO heavenly filled with bodies of the heavens, that even i cant stand the heavenliness! :0 Planets ARE heavenly bodies, as are stars. Some planets have satellites, and some don't.
Is the imaginary sphere on which all objects in the sky seem to be located called the celestial sphere?
celestial sphere A+
The imaginary sphere on which all objects in the sky seem to be located is called the celestial sphere.?
celestial sphere A+
Why do planets seem brighter than stars?
Some planets seem brighter - not all of them. Planets are quite near to us, as compared to the stars.
What do you call the imaginary dome of the sky to which the stars seem to be attached?
The celestial sphere.
What is the imaginary sphere on which all object in the sky seem to be located?
the celestial spherecelestialtrue
What is the imaginary sphere which all objects in the sky seem to be located?
the celestial spherecelestialtrue
What Is the imaginary sphere on which all object on the sky seem to be located?
the celestial spherecelestialtrue
Are all planets made of metal?
No, but they all seem to have metal cores. Minor planets are not so consistent.
What is a circumpolar contellation?
They're constellations which appear around the celestial poles, which never seem to rise or set.
Does the mass of a planets seem to effect how many moons it has?
Yes. The massive giant planets have far more moons than the less massive terrestrial planets.
What doe s all the planets look like?
Most Planets seem spherical, but have lots of indentations. There are no common factors among planets and all appear to have physical differences
