Why is Mercury very hot during the day?

Mercury has almost no atmosphere. Because it is so close to the sun, it can be very hot. On its sunny side, Mercury can reach a scorching 800 degrees Fahrenheit!

Why is Mercury so cold at night but so hot during the day?

However, Mercury’s gravitational force is not strong enough to sustain the hot atmosphere. Due to the absence of this atmosphere, the heat is quickly lost at night thereby decreasing its temperature to around -200^oC.

Why is Mercury very hot during the day and very cold at night class 8?

It is very hot during the day (over 400°C) because Mercury is so close to the Sun. At night it is very cold because Mercury loses almost all its heat since there is almost no atmosphere to keep the warmth there.

Is Venus hotter than Mercury?

Even though Mercury is closer to the Sun, Venus is the hottest planet in our solar system. Its thick atmosphere is full of the greenhouse gas carbon dioxide, and it has clouds of sulfuric acid.

Why hasnt Mercury been pulled into the Sun?

So, Mercury is unlikely to fall into the Sun. In about 6 billion years time, the Sun will run out of Hydrogen fuel in its core. At this stage the Sun will expand into a red giant. As the Sun expands it will consume Mercury, Venus and possibly the Earth.

What are 5 facts about Mercury?

It’s not known who discovered Mercury.

• A year on Mercury is just 88 days long. …
• Mercury is the smallest planet in the Solar System. …
• Mercury is the second densest planet. …
• Mercury has wrinkles. …
• Mercury has a molten core. …
• Mercury is only the second hottest planet. …
• Mercury is the most cratered planet in the Solar System.

What would happen if Mercury fell into the Sun?

The answer, of course, is unknown, but two new studies suggest a collision with Mercury or Mars could doom life long before the Sun swells into a red giant and bakes the planet to a crisp in about 5 billion years.

How long is 1 year in space?

**One year in space would be 365 days /1 year on earth…..

How long is a year in Mars?

Since Mars is further from the Sun compared to the Earth, a Martian year is longer: 687 days. That’s just less than two Earth years. Although you wouldn’t age any quicker, living on Mars you’d only be celebrating a birthday roughly every two years, since a birthday is marking another orbit around the Sun.

Who first discovered Mercury?

Mercury is one of the five classical planets visible with the naked eye and is named after the swift-footed Roman messenger god. It is not known exactly when the planet was first discovered – although it was first observed through telescopes in the seventeenth century by astronomers Galileo Galilei and Thomas Harriot.

Is Mercury a dead planet?

Mercury is a dead planet and the most heavily cratered object in the solar system. It is a world of black starry skies, gray craters, no moon and not enough gravity to hold an atmosphere.

Can we visit Mercury?

Have astronauts from Earth ever stepped foot on Mercury? No, Mercury has been visited by spacecraft from Earth, but no human has ever gone into orbit around Mercury, let alone stepped on the surface.

What planet is green?

Uranus

Uranus is blue-green in color, as a result of the methane in its mostly hydrogen-helium atmosphere. The planet is often dubbed an ice giant, since at least 80% of its mass is a fluid mix of water, methane and ammonia ice.

Does it rain diamonds on Uranus?

Yes, there is really ‘diamond rain’ on Uranus and Neptune.

Is Saturn a sun?

Saturn is the sixth planet from our Sun (a star) and orbits at a distance of about 886 million miles (1.4 billion kilometers) from the Sun.

What is the color of Earth planet?

blue-green

Earth looks blue-green from space, depending on cloud cover, because of the high proportion of water on the surface. Planets with little or no atmosphere are seen in the color of their surfaces. Mercury is a rocky grey, while Mars is a butterscotch, reddish color (have a look at the Martian sky).

What Colour is the sky?

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. This is why we see a blue sky most of the time.

Are any planets green?

Which planet is also called as ‘the green planet’? Notes: Uranus is four times the size of the Earth. It appears greenish in color because of the large amount of methane gas present in its atmosphere.