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What is comets?

चित्र
What is comets? Comets are objects made of ice, dust and rock in the solar system. They have a hard core and long tail of gas and dust. Every now and then they appear within sight of the Earth, before disappearing into deep space. TWO TAILS When a comet becomes close to the Sun, its ice melts and forms two tails: one made of gas and one made of dust. Halley’s Comet Halley makes a full circle around the comet The sun every 75 years, and it has been recorded by historians for more than 2,000 years. Beyklem  which tells the story of the battle of hasting shows it moving in the sky In the year 1066. Circling the sun Comets revolve around the Sun. Their tails are always away from the sun, but in slightly different directions. As the comet is closer to the sun, the tail grows longer.
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World largest seal

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World largest seal The name of the world's largest seal is SOUTHERN ELEPHANT SEAL This seal is also called BEACH BULLDOZER. The largest carnivore that breeds on land is ten times heavier than the male southern elephant seal polar bear. Males also weigh five times more than females. Elephants spend up to eight months in the open sea, traveling large distances in search of food. During a fishing dive, they can hold their breath for up to two hours - the longest for any marine mammal. SIZE:- 6½–20 ft (2–6 m) long; 790–11,025 lb (360–5,000 kg) in weight (males much longer and heavier than females) HABITAT :-Stony beaches and adjoining seas. LOCATION:-  Islands around the Antarctic and southern tip of South America. DIET :-   Fishes and squid. When the elephant seal dips in cold water, their heart rate decreases to circulate blood around vital organs. This dive reflex also occurs in humans, but is less effective.“At sea, elephant...
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Why mars surface is red?

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Why mars surface is red? The red color that we usually see in images of Mars is actually the result of iron rust. The rocks and soil on the surface of Mars contain mostly iron and a small amount of dust. Other elements such as chlorine and sulfur. The rocks and soil were then wiped out by the wind and the resulting dust was blown across The surface of the planet by the activity of ancient volcanoes. Recent evidence suggests that dust along with water also extends to Mars. By the presence of channels and ducts on the surface of the planet. The iron contained within the dust reacted with oxygen in the atmosphere, creating a distinctive red rust color, while the sky appeared red as the storms lifted up the red dust. Planet's atmosphere. This dust surface, which is between a few millimeters and two meters deep, also sits on top of a layer of hardened lacquer mostly composed of basalt. Iron concentration This basalt is found to be much higher than basalt on Earth, and ...
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