Since the moon doesn't have a magnetic field, the solar wind must have been depositing helium-3 there for billions of years. In fact, Apollo astronauts have already discovered it in the moon's dust. Some estimates hold that there may be over a million tons of helium-3 buried on the ...
What makes up the sun? The Sun makes energy through a process called? Which electromagnetic waves emitted from the sun produce heat? What type of ionizing radiation consists of helium nuclei? How is energy transferred from the sun to the Earth?
Though these burning objects are not the first stars found covered in carbon and oxygen, they are the first discovered to have helium-burning cores. "That merger(并合) tells you the star must have evolved differently," says study author Nicole Reindl. The stars may have formed from the ...
Why does helium have more spectral lines than hydrogen? Water is more elastic than air. Why? Why is it possible to describe an airship as a lighter-than-air craft though the materials used to make airships are heavier than air?
For centuries, the Sun has been worshipped as a God, and a provider of life on this planet. The energy that we derive from the Sun is life-sustaining. This energy is generated by the process of nuclear fusion. At high temperature and pressure, hydrogen nuclei fuse...
The sunlight that we see.The sun light comes from our own sun'sAtomic energy.Scientists have found that the sun is a huge atom smashing machine. The heat andlight of the sun come from the nuclear reactions of hydrogen, carbon, nitrogen andhelium.The sun is a mass of incandescent gas,A...
Hydrogen turns into helium, which releases energy.So our standard model of star formation suggests that the Sun wasn't nearly as bright three to four billion years ago as it is today, which means that temperatures on Earth and Mars would have been lower ... which, in turn, suggests??
The Moon and Earth have a very unique role in the solar system. Earth is really the only terrestrial planet with a large moon compared to the other planets that are closest to the Sun. One important key factor is the noticeable effect the Moon has on the Earths tides; which are caused ...
but we still don't have a full- scale fusion plant to point to.And there's a rather big logistical problem as well.: how to get the helium-3 off the Moon.Digging the stuff up is challenging because the distribution of helium-3 is so diffused across the lunar surface.One estimate is...
A cutaway of the interior of the Sun. Most stars have similar types of zones, including the cores where nuclear fusion takes place.NASA/MSFC For the Sun, this means that atoms of hydrogen are slammed together under high heat and pressure. The result is a helium atom. That process of fusi...