Is there liquid in stars?
Stars, not so much, they can only exist as gas or plasma balls, the problem with them is, they are really too hot for any solid or liquid to exist! Planets on the other hand, they can exist in all of those forms!
Which star is made of water?
Kepler 138 is a red dwarf star located 218 light-years away. The low density of Kepler-138 c and Kepler-138 d – which are nearly identical in size – means that they must be composed largely of water.
Does water exist in space?
In the vacuum of space, water can exist only as a gas (water vapor) or as solid (ice); the pressure is far too low for water to be liquid. Close to the newly formed sun, water would have been in the vapor form along with other hydrogen compounds such as methane (CH4) and ammonia (NH3).
Do any planet have water?
Evidence points to oceans on other planets and moons, even within our own solar system. But Earth is the only known planet (or moon) to have consistent, stable bodies of liquid water on its surface.
Do stars have fuel?
A star's gas provides its fuel, and its mass determines how rapidly it runs through its supply, with lower-mass stars burning longer, dimmer, and cooler than very massive stars. More massive stars must burn fuel at a higher rate to generate the energy that keeps them from collapsing under their own weight.
Are stars liquid or solid?
Stars are made of very hot gas. This gas is mostly hydrogen and helium, which are the two lightest elements. Stars shine by burning hydrogen into helium in their cores, and later in their lives create heavier elements.
Which planet is full of water?
Earth is the only astronomical object known to presently have bodies of liquid water on its surface, although several exoplanets have been found with the right conditions to support liquid water.
How do stars create water?
Stars are too hot for H2O molecules to exist. However, all elements heavier than helium were produced in stars, including oxygen. And when old star explodes, it releases plenty of oxygen and leftover hydrogen. These gases then may react to form water molecules.
Is sky made up of water?
The atmosphere is made mostly of the gases nitrogen (78%), and oxygen (21%). Argon gas and water (in the form of vapor, droplets and ice crystals) are the next most common things. There are also small amounts of other gases, plus many small solid particles, like dust, soot and ashes, pollen, and salt from the oceans.
Is Earth losing water?
Liquid water, which is necessary for all known forms of life, continues to exist on the surface of Earth because the planet is at a far enough distance (known as the habitable zone) from the Sun that it does not lose its water, but not so far that low temperatures cause all water on the planet to freeze.
Did the Moon have water?
In 2020, data from NASA's SOFIA mission confirmed water exists in the sunlit area of the lunar surface as molecules of H2O embedded within, or perhaps sticking to the surface of, grains of lunar dust. Here is a brief history of the discoveries leading up to the confirmation of water on the Moon.
Can water boil in space?
Water poured into space (outside of a spacecraft) would rapidly vaporize or boil away. In space, where there is no air, there is no air pressure. As air pressure drops, the temperature needed to boil water becomes lower. That's why water boils much faster on a mountaintop than it does at sea level.
Which planet has oxygen?
This makes Europa the first satellite ever found to have an oxygen atmosphere, and only the third such solar system object beyond Earth (the planets Mars and Venus have traces of molecular oxygen in their atmospheres).
Did Mars have life?
To date, no proof of past or present life has been found on Mars. Cumulative evidence suggests that during the ancient Noachian time period, the surface environment of Mars had liquid water and may have been habitable for microorganisms, but habitable conditions do not necessarily indicate life.
Can a planet be 100% water?
Like a giant droplet of water floating around in the cosmos… It is probably not possible for a planet to be entirely liquid. This is because a planet needs to be 'self-gravitating' so that it holds its spherical shape under gravity.
Why do stars twinkle?
The stars seem to twinkle in the night sky due to the effects of the Earth's atmosphere. When starlight enters the atmosphere, it is affected by winds in the atmosphere and areas with different temperatures and densities. This causes the light from the star to twinkle when seen from the ground.
How long do stars live?
Giant stars use up their hydrogen fuel quickly, resulting in short lifetimes. An eight solar mass star will live less than 100 million years. At 10-15 solar masses, the lifetime of the star drops to only 10-20 million years. The most massive giant stars are believed to live no more than a few million years.
Why are stars hot?
Deep inside its core, hydrogen atoms smash together, forming helium and releasing huge amounts of energy that heats the gas. This is called nuclear fusion, and it's why a star shines. As the hot gas pushes outward, it opposes the inward pull of gravity. This balance of forces is what makes a star, a star.
Do stars contain life?
No star is alive or contains life. Their planets do.
How is a star born?
Stars form from collapsing clouds of gas and dust. Astronomers can train telescopes on giant clouds of hydrogen gas in our own galaxy and find knots of denser, colder gas and dust that are in the process of giving rise to stars. These dust-thick regions of star birth are often dark and opaque.
Do stars fly or float?
They only appear to be floating. In fact, they are being accelerated towards the Sun, but their velocity is so high that they miss; in fact they wind up going in a near circle. But physicists think of that as falling. Shoot a cannon, and the cannonball falls towards the Earth and hits it.
Which planet is 75% water?
Earth is a water planet. Three-quarters of the planet's surface covered by ice or oceans, and the sky is filled with clouds.
What planet has 75% water?
Our amazing planet Earth, the water planet. In both liquid and frozen form, water covers 75% of the Earth's surface, which is why Earth is known as the water planet.
Which planet is 70% covered with water?
About 70% of the surface of our planet Earth is covered in water. We are nestled in our solar system at just the right distance from the Sun for this liquid water to exist.
How old is water on Earth?
Earth's water is around 4.5 billion years old, some of which predates the Sun. This ancient water originated from the molecular cloud that formed the Solar System.
Can we make water artificially?
While making small volumes of pure water in a lab is possible, it's not practical to “make” large volumes of water by mixing hydrogen and oxygen together. The reaction is expensive, releases lots of energy, and can cause really massive explosions.
Why are stars created?
Star Formation
Stars are born within the clouds of dust and scattered throughout most galaxies. A familiar example of such as a dust cloud is the Orion Nebula. Turbulence deep within these clouds gives rise to knots with sufficient mass that the gas and dust can begin to collapse under its own gravitational attraction.
Does air have water?
There is always water in the atmosphere. Clouds are, of course, the most visible manifestation of atmospheric water, but even clear air contains water — water in particles that are too small to be seen.
Why is water sky blue?
The ocean is blue because water absorbs colors in the red part of the light spectrum. Like a filter, this leaves behind colors in the blue part of the light spectrum for us to see.
Are clouds ice or water?
A cloud is defined as 'a visible aggregate of minute droplets of water or particles of ice or a mixture of both floating in the free air'.
Is Earth losing oxygen?
From the 1950s to the present oxygen levels in the global ocean have declined by 2%. More recently, models estimate that global oxygen concentrations may decline by as much a 7% by the year 2100. The decrease in oxygen is not the same everywhere: in some parts of the tropics there has been a 40-50% decrease.
What color is ocean?
Most of the ocean is blue in color, but in some places the ocean is blue-green, green, or even yellow to brown. Blue ocean color is a result of several factors. First, water preferentially absorbs red light, which means that blue light remains and is reflected back out of the water.
Is the water older than the sun?
By looking at the water on protostar V883 Orion, a mere 1,305 light-years from Earth, scientists found a "probable link" between the water in the interstellar medium and the water in our solar system. That likely means our water is billions of years older than the sun.
Is Lunar water drinkable?
First, the ice on the moon isn't like the ice you'd find in your freezer. It's mixed with lunar regolith, or moon dust, and other potential impurities. The ice might also contain other volatiles like methane or ammonia. So, it would need to be extracted and purified before it could be used as drinking water.
Is there oxygen on moon?
In Short. A team of scientists at Nasa have confirmed that there is oxygen on the airless world of the Moon as they extract the life-sustaining element from lunar soil. The new milestone could go a long way in sustaining a longer mission on the Moon, which has no air.
Does moon have life on it?
The researchers are looking for signs of life endemic to the Moon, as well as organic compounds that are the basic building blocks of life. Of course, no lunar life was found in these samples, and we now know that the Moon does not harbor life.
Can space freeze water?
The freezing process of water in space depends on various factors such as temperature, pressure, and exposure to the vacuum of space. In the absence of atmospheric pressure and with extremely low temperatures, water in space can turn into ice relatively quickly, potentially within a matter of seconds to minutes.
How is space cold?
Far outside our solar system and out past the distant reaches 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 (2.7 kelvin).
Is ice in space?
Ice is common in our solar system, from deposits at the poles of Mercury and the Moon to ice-covered moons and rings around distant Jupiter and Saturn, and comets made of ice and other materials streaming across the spaces between. And, of course, ice is present around our own world.
Which planet has life like Earth?
Kepler-452b (sometimes quoted to be an Earth 2.0 or Earth's Cousin based on its characteristics; also known by its Kepler Object of Interest designation KOI-7016.01) is a super-Earth exoplanet orbiting within the inner edge of the habitable zone of the sun-like star Kepler-452 and is the only planet in the system ...
What planet can you breathe on?
Besides Earth, there are no planets or moons that we know of were humans could breathe unassisted. Venus has about 92 times the pressure of Earth, is unbreathable Carbon Dioxide (CO2) with traces of Sulfuric Acid and Nitrogen, and is over 460 C (860F), so that would kill a human in seconds.
Which planet can humans live on?
Flexi Says: Right now and for the foreseeable future, humans can only live on Earth. Humans have not traveled very far into space. The Moon is the only other place humans have visited. No other planet in our solar system currently has the conditions to support life as we know it on Earth.
Are we alone in the universe?
“The universe is so vast and the building blocks of life are so abundant in the cosmos. The number of planets in the cosmos is so large that it's very unlikely that life on Earth is the only form of life that exists out there,” Margot said.
Can we breathe on Mars?
Mars does have an atmosphere, but it is about 100 times thinner than Earth's atmosphere and it has very little oxygen. The atmosphere on Mars is made up of mainly carbon dioxide. An astronaut on Mars would not be able to breathe the Martian air and would need a spacesuit with oxygen to work outdoors.
Is there life on Titan?
Although there is so far no evidence of life on Titan, its complex chemistry and unique environments are certain to make it a destination for continued exploration.
What is the hottest planet?
It has a strong greenhouse effect, similar to the one we experience on Earth. Because of this, Venus is the hottest planet in the solar system. The surface of Venus is approximately 465°C!
Do water worlds exist?
Earth isn't the only ocean world in our solar system. Water on other worlds exists in diverse forms on moons, dwarf planets, and even comets. Ice, water vapor in the atmosphere, and oceans on other worlds offer clues in the quest to discover life beyond our home planet.
Did NASA find a ocean planet?
Data collected by the agency's James Webb Telescope on K2-18 b, a planet orbiting a dwarf star 120 light years from Earth in the Leo constellation, suggested evidence of methane, carbon, and a shortage of ammonia, indicating it is a Hycean exoplanet — a planet with a hydrogen atmosphere and covered in water.
What are stars made of?
Stars are giant balls of hot gas – mostly hydrogen, with some helium and small amounts of other elements. Every star has its own life cycle, ranging from a few million to trillions of years, and its properties change as it ages.
How old are the stars we see today?
Our galaxy is (roughly) 70,000 or so light years across. So the light we see from stars is going to be (to first order) a maximum of 70,000 years old. 70,000 years, however, is *massively* shorter than the >4,000,000 lifetimes of the most common stars we see (G and K stars).
Do stars move in the sky?
This motion is mostly apparent: while stars do cruise about on their own paths, the motion is far more noticeable with closer stars, and we measure it according to how dramatic the change appears to us on Earth.
What is the longest lived star?
At the other end of the spectrum are the smallest main sequence stars, spectral type M, the so-called red dwarfs, the most numerous stars in the universe, with the longest lifespan of 200 billion years, more than 14 times the current age of the universe.
Why do stars twinkle?
The stars seem to twinkle in the night sky due to the effects of the Earth's atmosphere. When starlight enters the atmosphere, it is affected by winds in the atmosphere and areas with different temperatures and densities. This causes the light from the star to twinkle when seen from the ground.
What is inside a star?
Stars are mainly made of hydrogen and helium gas. In the centre of a star, the temperature and pressure are so high that four protons can fuse to form helium, in a series of steps. This process releases huge amounts of energy and makes the stars shine brightly. As stars age, what happens inside them changes.
Are stars hotter than lava?
A red dwarf star, the coolest of the stars that can fuse hydrogen, sits at about 3000 C. Lava usually checks in at a temperature somewhere between 700 degrees and 1200 degrees. At its hottest, lava is only half the temperature of the surface of the dimmest stars.
Can stars support life?
K-type stars may be able to support life far longer than the Sun. Whether fainter late K and M class red dwarf stars are also suitable hosts for habitable planets is perhaps the most important open question in the entire field of planetary habitability given their prevalence (habitability of red dwarf systems).
Could you live on a star?
No form of life can exist nor survive where temperatures are so high that only the simplest molecules can be formed. On the surface of stars you can expect to experience temperatures in the order of several thousand degrees Kelvin. Around stars it is even hotter, and temperatures can rise up to 20 million degrees.
Is star solid liquid or gas?
How long do stars live?
Is there any solid matter in stars?
Can we see a star being born?
Is there anything solid in a star?
Basically, stars are big exploding balls of gas, mostly hydrogen and helium. Our nearest star, the Sun, is so hot that the huge amount of hydrogen is undergoing a constant star-wide nuclear reaction, like in a hydrogen bomb.
Do stars contain antimatter?
Are stars solid? No; they are not solid, liquid, or gas. Stars like our sun consist of a core made of degenerate helium, surrounded by hydrogen plasma. Degenerate matter is an exotic state of matter that is caused by the extremely high density at the center of the star.