Desert sand is a very light and very weakly saturated reddish yellow colour which corresponds specifically to the coloration of sand. It may also be regarded as a deep tone of beige….

Most beach sand color range from pale cream to golden to caramel, but in select places around the world, sands can be red, brown, pink, orange, gold, purple, green, and black.

Field investigations have established that the red color of desert sand is due to the presence of iron-oxide (hematite) coatings on individual grains.

In many areas the sand is red, the result of a thin layer of iron oxide that coats the grains of sand. The entire western Kalahari Desert is characterized by long chains of dunes, oriented roughly to the north or northwest.

Seen from the air, the Arabian Desert appears as a vast expanse of light sand-coloured terrain with an occasional indistinct line of escarpments or mountain ranges, black lava flows, or reddish systems of desert dunes stretching to the horizon.

The colour of the desert sand comes in many colours and it will depend on the colour of the rock it weathered from. Yellow sand – shows it is composed of feldspar and quartz. Red sand – shows it is rich in iron. Black sand – is from volcanic rocks rich in iron and titanium.

Most experts agree that a desert is an area of land that receives no more than 25 centimeters (10 inches) of precipitation a year. The amount of evaporation in a desert often greatly exceeds the annual rainfall. In all deserts, there is little water available for plants and other organisms.

Cold deserts have hot summers but extremely cold winters. These deserts are found in high, flat areas, called plateaus, or mountainous areas in temperate regions of the world. Like other types of desert, cold deserts get very little rain or snow.

The main difference between hot and cold desert is that the hot desert is battered by a high sun whereas the cold desert has ice and the snow in the ground. Furthermore, hot deserts are closer to the equator while cold deserts are in extreme northern or southern latitudes. Generally, deserts are dry, arid, and rocky.

Thar Desert remains hot and dry throughout the year. There is very little or no rainfall. In summer, days are very hot and nights are cool. In winter, days are warm and nights are cold.

Summary: As little as 6,000 years ago, the vast Sahara Desert was covered in grassland that received plenty of rainfall, but shifts in the world’s weather patterns abruptly transformed the vegetated region into some of the driest land on Earth. …

Roads would turn to rivers, and underground subway systems would flood. Most species that humans have repressed would return to the population levels they were at before humans evolved. Invasive species that humans have imported and exported would continue to thrive in their non-native lands.

Anthropogenic human extinction is sometimes called omnicide. Many possible scenarios of anthropogenic extinction have been proposed, such as climate change, global nuclear annihilation, biological warfare and ecological collapse.

Well, we would become extinct. If you can only have one child per couple, then each new generation of children will be smaller than the previous, and this would continue until the human race is no more. Since it is one child per couple, there is nothing saying that each person cannot have more than one child.

No, you can’t escape the Moon’s gravity by jumping. The Moon’s gravity extends to infinity; it does not end or go to zero. And no one can just up with enough energy to achieve Escape Velocity: 2400 m/s (2 miles/sec).

Brown

Mix a pile of White with touch of Dioxazine Purple and a touch of Cadmium Yellow Medium. As the sand becomes drier, add more White.

When we direct solar rays through a prism, we see all the colors of the rainbow come out the other end. That’s to say we see all the colors that are visible to the human eye. “Therefore the sun is white,” because white is made up of all the colors, Baird said.

Tau Ceti

Although the star VY Canis Majoris in the constellation Canis Major has a much cooler surface temperature than our sun, this star’s sheer size makes it a super-luminous star.

The largest known star in the universe is UY Scuti, a hypergiant with a radius around 1,700 times larger than the sun.

Surviving a Powerful Event. In a report by Futurism, a team of astronomers observed what they believe is the youngest neutron star 170,000 light-years away from Earth in a satellite galaxy of our very own Milky Way, which is known as SN 1987A.

Although it’s difficult to pin down the exact traits of any given star, based on what we know, the largest star is UY Scuti, which is some 1,700 times as wide as the Sun.

Now, let’s see which are the shiniest stars in our beautiful starry night sky.

1. Sirius A (Alpha Canis Majoris) Our number one star on the list.
2. Canopus (Alpha Carinae)
3. Rigil Kentaurus (Alpha Centauri)
4. Arcturus (Alpha Bootis)
5. Vega (Alpha Lyrae)
6. Capella (Alpha Aurigae)
7. Rigel (Beta Orionis)
8. Procyon (Alpha Canis Minoris)

Betelgeuse, a red giant, is about 700 times bigger than the sun and about 14,000 times brighter. “We have found stars that are 100 times bigger in diameter than our sun. Truly those stars are enormous,” NASA says on its SpacePlace website.

Planets in Our Solar System

• Mercury. Mercury—the smallest planet in our solar system and closest to the Sun—is only slightly larger than Earth’s Moon.
• Venus. Venus spins slowly in the opposite direction from most planets.
• Earth.
• Mars.
• Jupiter.
• Saturn.
• Uranus.
• Neptune.

Largest planet: Jupiter, roughly 88,846 miles (142,984 km) at its largest diameter, which is about 11 times the diameter of the Earth. Largest moon: Ganymede, which coincidentally orbits Jupiter, is roughly 3,273 miles (5,268 km) in diameter and is a little larger than the planet Mercury.

Hercules-Corona Borealis Great Wall

Universe’s oldest known quasar discovered 13 billion light-years away. Astronomers have found the farthest known source of radio emissions in the universe: a galaxy-swallowing supermassive black hole. Astronomers have discovered the most distant and ancient single source of radio emissions in the known universe.

Quasars

Although quasars are known to drive strong winds and jets of relativistic particles that can be dangerous in their own right, Forbes and Loeb looked at the damage caused by their light alone.