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Mercury does not have what we would call an atmosphere. It is very, very thin , a collection of a few atoms per cubic meter, some being ionized from the surface. It is less than a trillionth of Earth's.
What else can I help you with?
Which planet does not have enough gravity to have an atmosphere?
Nercury
Why does the atmosphere not just float away. Surely gravity isn't strong enough since it doesn't even stop steam rising?
The atmosphere is held in place by Earth's gravity, which is strong enough to keep it from floating away into space. The molecules in steam are moving faster than air molecules in the atmosphere, so they can rise against gravity. The atmosphere is trapped by Earth's gravitational pull, preventing it from escaping like steam.
Why does Air stay within the Atmosphere - solid and liquid are pulled by gravity BUT i don't agree Air is pulled by gravity?
First of all, the atmosphere is the air. Secondly, air is matter, all matter is affected by gravity. Imagine this: the sea is liquid, it lies on the earth, pulled by gravity. the atmosphere is also like this except it is a "sea" of air, it lies on the earth, pulled by gravity.
Which layer do light gases escape earths gravity?
Earth's lighter gases such as Hydrogen and Helium will rise to the top of the atmosphere. Since they are very light, they will easily be knocked awry by the solar wind, the stream of charged particles coming from the Sun.
Which gas can escape from earth's gravity?
Helium and hydrogen gases are light enough to escape Earth's gravity, although this process occurs very slowly. On the other hand, heavier gases like oxygen and nitrogen are retained in Earth's atmosphere due to their higher mass.
Why doesnt mercury have an atmosphere?
One word- gravity. Mercury is just simply not massive enough to generate the gravity required to hold gases close enough to the surface to create an atmosphere.
Why doesnt Mercury suport life?
Mercury does not have enough atmosphere and is too hot / cold to support life.
Mercury does not have enough gravity to hold this?
ya it has a little bit less gravity than the moon. its........floaty..........
Does mercury have enough gravity to have an atmosphere?
no, it's way too close to the sun to hold onto an atmosphere without the sun's gravity riping it apart, plus the solar winds are too strong for mercury to hold it's atmosphere.
What planet doesn't have enough gravity to have an atmosphere?
Mercury - the closest planet to the sun. Solar wind and radiation from the sun also blast off some of Mercury's minuscule atmosphere (Mercury's atmosphere is sometimes referred to as an exosphere)
What planet doesn't have have enough gravity to an atmosphere?
Mercury - the closest planet to the sun. Solar wind and radiation from the sun also blast off some of Mercury's minuscule atmosphere (Mercury's atmosphere is sometimes referred to as an exosphere)
What planet doesn't have enough gravity to have an atmosphere.?
Mercury - the closest planet to the sun. Solar wind and radiation from the sun also blast off some of Mercury's minuscule atmosphere (Mercury's atmosphere is sometimes referred to as an exosphere)
What holds the Earth's atmosphere in place?
The atmosphere is held in place by the earth's gravity. Gravity is related to mass, the more mass a planet has, the more gravity. A much smaller planet like mercury or a body such as the moon will have less gravity, not enough to hold an atmosphere - the gravity is not strong enough to prevent the gas particles from escaping into space.
Which planets have no atmosphere?
Mercury and the Moon have very thin atmospheres that are considered more like exospheres than traditional atmospheres. However, the gas density is so low that they are often considered to have no significant atmosphere.
What moon or planet doesn't have enough gravity to have an atmosphere?
-- Mercury -- moon of Earth -- moons of Mars -- majority of moons of Jupiter and Saturn Note: While Mars technically has an atmosphere, its density is only around 1% of the density of earth's atmosphere, so Mars is very close to joining the list.
What is the atmosphere on Mercury is due to?
The extremely thin atmosphere on Mercury is due to the planet's relatively low gravity, which is not strong enough to hold on to gases. Any atmosphere that Mercury may have had in the past would have been stripped away by solar wind and radiation.
What is the Mercurys atmosphere compared to earth?
Mercury's atmosphere is extremely thin compared to Earth's. It is composed mostly of oxygen, sodium, hydrogen, helium, and potassium, but its overall density is about 100 trillion times less than Earth's atmosphere. Mercury's weak gravity isn't strong enough to retain a thick atmosphere like Earth's.
