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. In our solar system, Earth orbits around the sun in an area called the habitable zone.
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. It thus requires a substantial amount of mass, which means the pressure and temperature in the inner regions are usually high.
A nearby alien planet six times the size of the Earth is covered with a water-rich atmosphere that includes a strange "plasma form" of water, scientists say. Astronomers have determined that the atmosphere of super-Earth Gliese 1214 b is likely water-rich.
On Saturn it occasionally rains diamonds.
In 2012, scientists announced they'd found a planet, 55 Cancri e, that was made out of diamond. The idea was based on estimates of the planet's size and density.
Thus, hydrogen can be liquid and "float freely" in space - but only in a lattice of oxygen, under the extreme pressures, at the core of one of our gas giants (or other similar objects in space).
Well, at current market prices, 16 Psyche contain enough gold and other precious metals to be worth roughly $700 quintillion, which is enough to give every single human being on this planet a private fortune of nearly a hundred billion bucks.
There is only one planet where gaseous oxygen is found: Earth! And the only reason that Earth has oxygen is because Earth has plants that do photosynthesis.
Europa's surface is blasted by radiation from Jupiter. That's a bad thing for life on the surface – it couldn't survive. But the radiation may create fuel for life in an ocean below the surface. The radiation splits apart water molecules (H2O, made of oxygen and hydrogen) in Europa's extremely tenuous atmosphere.
If you tried to breathe on the surface of Mars without a spacesuit supplying your oxygen – bad idea – you would die in an instant. You would suffocate, and because of the low atmospheric pressure, your blood would boil, both at about the same time.
In fact, according to one astrophysicist who came up with a calculation for valuing planets, Earth is worth a bank-breaking $5 quadrillion dollars, unsurprisingly the priciest in the solar-system.
It's an exoplanet or extrasolar planet—a planet outside the solar system—spotted by ASTERIA around a Sun-like double star called 55 Cancri in the constellation of Cancer.
It's an unusual species of diamond, called a "carbonado." And at around the size of a lemon, it's a huge carbonado. Like all diamonds, carbonados are made of carbon atoms that, under conditions of immense heat and pressure, form into an exquisite crystal structure.
On November 22, 2016, NASA reported finding a large amount of underground ice in the Utopia Planitia region of Mars. The volume of water detected has been estimated to be equivalent to the volume of water in Lake Superior.
Acute exposure to the vacuum of space: No, you won't freeze (or explode) One common misconception is that outer space is cold, but in truth, space itself has no temperature. In thermodynamic terms, temperature is a function of heat energy in a given amount of matter, and space by definition has no mass.
Well, it stays where it is. Here's how boiling looks in zero gravity: The heated water stays close to the heater. Regions further away from the heater stay cooler, so the actual heated part boils earlier. Once it begins to boil, the vapor bubbles don't rise, but join each other due to surface tension.
Uranus is the second least dense planet in the solar system, indicating that it is made up mostly of ices.
The weather on HD 189733b is deadly. The winds, composed of silicate particles, blow up to 8,700 kilometres per hour (5,400 mph). Observations of this planet have also found evidence that it rains molten glass, horizontally.
Next time you visit Jupiter remember to take an umbrella with you. Researchers at the University of California, Berkeley have discovered that drops of helium rain, laced with neon, could be falling from the clouds. Somewhere deep inside Jupiter it is raining helium.
The world's primary feudal landowner is Queen Elizabeth II. She is Queen of 32 countries, head of a Commonwealth of 54 countries in which a quarter of the world's population lives, and legal owner of about 6.6 billion acres of land, one-sixth of the earth's land surface.
No, people cannot legally buy planets, at least for now. There isn't any way to legally enforce a claim to a planet, and courts have rejected similar claims in the past. International law forbids countries from claiming any celestial body, meaning a nation cannot grant space real estate to its citizens.
Given a lunar surface area of 9.37 billion acres, and assuming a profit of $21.50 per acre, we're looking at just over $200 billion in value.
On Feb. 7, 2021, Mars passes solar longitude 0 as the Sun crosses the equator on Mars. This is the vernal equinox, and was chosen by planetary scientists as the start of a new year (a Mars year is 687 Earth days).
Kepler-62e and Kepler-62f are thought capable of hosting life. The planet Kepler-69c is located about 2,700 light-years from Earth in the constellation Cygnus.