Used with permission. When we see the Sun at sunrise or sunset, when it is low in the sky, it may appear yellow, orange, or red. But that is only because its short-wavelength colors (green, blue, violet) are scattered out by the Earth’s atmosphere, much like small waves are dispersed by big rocks along the shore.

Why Is Snow White FAQ Snow is actually translucent — or clear — since it’s made up of ice crystals. However, due to the way in which those clear crystals reflect light, snow appears white to the human eye.

There’s a scientific reason that snow is white Light is scattered and bounces off the ice crystals in the snow. The reflected light includes all the colors, which, together, look white. And all the colors of light add up to white.

Because though the sun emits strongest in the green part of the spectrum, it also emits strongly in all the visible colors – red through blue (400nm to 600nm). Our brains then integrate these signals into a perceived white color. Here on Earth, the atmosphere plays a role in the color of the sun.

But the Sun isn’t actually yellow; it’s just an illusion caused by the Earth’s atmosphere. The filtered blue light refracts from atmospheric molecules, causing the blue appearance of our sky. During times of sunrise and sunset, the colors of the Sun appear warmer than usual; this means orange or red instead of yellow.

Far and away the brightest object in the sky, the sun is easy to find, but it’s so bright that one can’t look directly at it without vision damage. Unlike most satellites, which orbit the Earth, SOHO orbits around the sun itself, like a planet or comet.

According to this Salon article[1], yes they do. They don’t need the support, but the bra keeps their wobbly bits in place while floating around in microgravity. They also like having an extra layer between said bits and the cameras all over the space station.

As for your first question, farts that are within a suit made for exploration outside a craft like the heavy space suits get trapped with their host’s body inside the undersuit for a time. Although, as you can see, the undersuit has a distinct layered seal around the neck.

We could touch rainbows if they were physical objects. But rainbows, unfortunately, are not physical objects. In short, you can touch someone else’s rainbow, but not your own. A rainbow is light reflecting and refracting off water particles in the air, such as rain or mist.

The technology required to travel between galaxies is far beyond humanity’s present capabilities, and currently only the subject of speculation, hypothesis, and science fiction. However, theoretically speaking, there is nothing to conclusively indicate that intergalactic travel is impossible.

The wrong kind of neutron star could wreak havoc on Earth. Neutron stars can be dangerous because of their strong fields. If a neutron star entered our solar system, it could cause chaos, throwing off the orbits of the planets and, if it got close enough, even raising tides that would rip the planet apart.

It’s Definitely Possible! As it turns out, we can have an artificial sun on Earth, but as you might expect, creating an artificial sun takes a bit more than conducting a small experiment with regular equipment in a typical laboratory.

The Sun is so hot that most of the gas is actually plasma, the fourth state of matter. The first state is a solid and it is the coldest state of matter. As we heat up a solid it becomes liquid.

And like all stars, it has a lifespan, characterized by a formation, main sequence, and eventual death. This lifespan began roughly 4.6 billion years ago, and will continue for about another 4.5 – 5.5 billion years, when it will deplete its supply of hydrogen, helium, and collapse into a white dwarf.

No. Stars like the Sun just aren’t massive enough to become black holes. Instead, in several billion years, the Sun will cast off its outer layers, and its core will form a white dwarf – a dense ball of carbon and oxygen that no longer produces nuclear energy, but that shines because it is very hot.