As white light passes through our atmosphere, tiny air molecules cause it to ‘scatter’ Violet and blue light have the shortest wavelengths and red light has the longest Therefore, blue light is scattered more than red light and the sky appears blue during the day
Why does the sky look blue short answer?
The Short Answer: Gases and particles in Earth’s atmosphere scatter sunlight in all directions Blue light is scattered more than other colors because it travels as shorter, smaller waves
Why is the sky blue but space is black?
Since you see blue light from everywhere overhead, the sky looks blue In space, there is no air Because there is nothing for the light to bounce off, it just goes straight None of the light gets scattered, and the “sky” looks dark and black
Why Earth looks blue from space?
– The earth is largely (71 percent of the surface of the earth) covered by water Water blocks the radiation of white light (sunlight) As illumination enters the water, the water consumes white light and reflects just blue light, lights of all colors The earth from space, thus, looks blue
What is the real color of the sky?
Blue light is scattered in all directions by the tiny molecules of air in Earth’s atmosphere Blue is scattered more than other colors because it travels as shorter, smaller waves This is why we see a blue sky most of the time
What does space smell like?
Astronaut Thomas Jones said it “carries a distinct odor of ozone, a faint acrid smell…a little like gunpowder, sulfurous” Tony Antonelli, another space-walker, said space “definitely has a smell that’s different than anything else” A gentleman named Don Pettit was a bit more verbose on the topic: “Each time, when I
What’s the scariest thing in space?
Supermassive black holes are strange The biggest black hole discovered so far weighs in at 40 billion times the mass of the Sun, or 20 times the size of the solar system
Why do we never fall off the Earth?
A force called gravity is pulling you down towards the centre of the Earth Anything with mass also has gravity, the more mass something has, the stronger the pull of gravity So we don’t fall off the Earth at the South Pole because gravity is pulling us down towards the centre of the Earth
Why do astronauts see black sky?
The sky appears blue when the scattering of light takes place As there is no atmosphere in space and hence light does not scatter into its constituent colors that is why the sky appears dark instead of blue to an astronaut in space This phenomenon is an example of a scattering of light
Why is Mars red?
Well, a lot of rocks on Mars are full of iron, and when they’re exposed to the great outdoors, they ‘oxidize’ and turn reddish – the same way an old bike left out in the yard gets all rusty When rusty dust from those rocks gets kicked up in the atmosphere, it makes the martian sky look pink
What Colour is water?
The water is in fact not colorless; even pure water is not colorless, but has a slight blue tint to it, best seen when looking through a long column of water The blueness in water is not caused by the scattering of light, which is responsible for the sky being blue
Is sky always blue?
Fed by nutrients in the sea and powered by the sun, cyanobacteria exploded across the ocean, pumping more and more oxygen into Earth’s atmosphere Slowly, over the next two billion years, oxygen in the atmosphere rose to its present levels, and the sky took on the blue hue on view today
Can the sky be green?
The right thickness of clouds, combined with the right diameter of water droplets and the right time of day may produce the perfect combination to turn the sky a greenish color
Can you fart in space?
The official verdict on gas in space: No burps, more farts, and no, you can’t use your flatulence to propel you around the shuttle
Are there dead bodies in space?
Remains are generally not scattered in space so as not to contribute to space debris Remains are sealed until the spacecraft burns up upon re-entry into the Earth’s atmosphere or they reach their extraterrestrial destinations
What is the smell of sperm?
Semen normally smells like ammonia, bleach, or chlorine Semen is about 1 percent sperm and 99 percent other compounds, enzymes, proteins, and minerals Many of these substances are alkaline
What’s in a black hole?
A black hole is an astronomical object with a gravitational pull so strong that nothing, not even light, can escape it A stellar-mass black hole forms when a star with more than 20 solar masses exhausts the nuclear fuel in its core and collapses under its own weight
Why is space black?
Because space is a near-perfect vacuum — meaning it has exceedingly few particles — there’s virtually nothing in the space between stars and planets to scatter light to our eyes And with no light reaching the eyes, they see black
What’s inside a black hole?
At the center of a black hole, as described by general relativity, may lie a gravitational singularity, a region where the spacetime curvature becomes infinite When they reach the singularity, they are crushed to infinite density and their mass is added to the total of the black hole
How cold is space?
Far outside our solar system and out past the distant reachers of our galaxy—in the vast nothingness of space—the distance between gas and dust particles grows, limiting their ability to transfer heat Temperatures in these vacuous regions can plummet to about -455 degrees Fahrenheit (27 kelvin)
Is there sound in space?
No, you cannot hear any sounds in near-empty regions of space Sound travels through the vibration of atoms and molecules in a medium (such as air or water) In space, where there is no air, sound has no way to travel
Why is the Sun so hot but it’s cold in space?
The reason is obvious: sunlight contains energy, and in near-Earth space, there is no atmosphere to filter that energy, so it’s even more intense than it is down here Now, on Earth, if you put something out in the sun, it warms up