What part of the planet formed first? Jupiter and Saturnare thought to have formed first and quickly within the first 10 million years of the solar system. In the warmer parts of the disk, closer to the star, rocky planets begin to form. ...
First, we can plant more flowers and plants. It can purify air, carries on the photosynthesis, carbon dioxide into oxygen, trees can save a lot of ground water, prevent soil erosion, solid earth, also can withstand the sand. How important the trees are! We can think of environmental prote...
What mayhem might one of these black beasts bring if it formed, or passed, near our solar system? As with most hypothetical questions, the devil is in the details. How close would the black hole approach as it swung by? Where would it come from? How massive would it be? First off, ...
The first molecules necessary forlifeon Earth could have been created when tiny flickers of “microlightning” between drops of water sparked the necessary chemical reactions. “This is a new way to think about how the building blocks of life were formed,” saysRichard Zareat Stanford University ...
Without the intervention of Saturn, Jupiter would have ended up in the zone where Earth now is. Earth would never have formed, and we would not be here.如果没有土星的介入，木星可能最后会在现在地球所在的区域。那么地球就不会形成，我们也不会在这里了。Our planet was luckier than its future ...
For starters we know that the geophysical and climatological history of the Earth would have been different. Although there is still large uncertainty about how the Moon was formed, the most currently favored theory describes a disastrous collision between the Earth and another planetary object.”(...
The water first? Yeah. Tell me when.先是水吗？是的，告诉我什么时候加。Then I'll add the methanol. Yeah, okay.然后我会加入甲醇。好。This icy material is similar to that of which the newly formed comets were composed. Next, the artificial comet's long journey is simulated in fast-...
Some scientists have considered that dark matter could be made of tinyblack holesformed in the early universe. These would be small and difficult to detect, but they remain a long-shot possibility. Could it just be gravity that is wrong?
But just because a particular mineral is found on, say Mars or Venus, we really shouldn't assume that whatever caused it to turn up there, must be the same process that formed that mineral here on Earth. 但是就是因为我们在火星上或者金星上找到了某种特定的矿物质,我们真的不应该假定,发生在...
Natural glasses: Obsidian is a natural glass formed during an eruption of silica-rich magma. Shown here are Apache tears, mahogany obsidian, and snowflake obsidian. Minerals Amazonite (a green variety of microcline feldspar) Beryl (the mineral of aquamarine, emerald, and heliodor) Chrysocolla (a...