Planetary Science

Not "life as we know it", such as life here on Earth. We can't speak with any precision about "life as we DON'T know it", other possibly exotic forms of life, but considering that in other environments that we once considered to be "extremely hostile to life" on Earth, life somehow manages to survive. For example, in ocean-bottom "fumaroles", places where volcanic activity is happening 15,000 feet or more deep in the ice-cold waters.

So, the completely accurate answer is, "Not that we know of, but anything is possible!"

the answer is athenosphere because it has less percent and since mantle has the most then athenosphere should have the 67% of the earths mass

Mars is about half the size of Earth with a diameter of roughly 6,779 kilometers. It is the fourth planet from the Sun, with an average distance of about 225 million kilometers. Mars is primarily composed of iron, sulfur, oxygen, and silicon, with a thin atmosphere consisting mainly of carbon dioxide.

Venus was once thought to be two separate planets because of its phases when observed from Earth. This led to the misconception that there were two distinct bodies - "Morning Star" when it appeared in the morning and "Evening Star" when it appeared in the evening.

Partial solar eclipses occur more often than total solar eclipses because the Moon's shadow on Earth is smaller during a partial eclipse, resulting in a larger area of visibility. This means that at any given time, a larger portion of the Earth is likely to experience a partial eclipse compared to a total eclipse, which requires the alignment of the Sun, Moon, and Earth to be more precise.

The path of Earth's orbit in the shape of an elongated closed curve is called an ellipse. An ellipse is a type of geometric shape that resembles an elongated circle, with two focal points inside the curve. This shape is a result of the gravitational forces between Earth and the Sun.

Yes, you can see moving planets from Earth. Planets like Venus, Mars, Jupiter, and Saturn are visible in the night sky and appear to move relative to the stars due to their orbits around the sun. With a telescope or even the naked eye, you can observe their movement over time.

Jupiter's diameter is approximately 11 times larger than Earth and 24 times larger than Triton's diameter. Jupiter also has a volume that is around 1,321 times greater than Earth, making it much larger in size compared to both Earth and Triton.

Between the orbit of Mars and Jupiter, there is the asteroid belt. This is made up of millions of small rocks that are in a direct orbit around the sun. Most of these objects are boulder sized or smaller, but some are quite large. The largest is a Dwarf planet called Ceres, which is around 975km in diameter.

Because the moon orbits the earth, and the earth orbits the sun, the moon will orbit the sun every 29.5 days. This is called one lunar month.

The time an asteroid takes to complete one full rotation on its axis can vary widely depending on the size and shape of the asteroid. Small asteroids can rotate in a matter of hours, while larger ones may take several hours to several days to complete one spin.

Venus and Earth have similar compositions, both being terrestrial planets with rocky surfaces. They also have similar densities, indicating similar compositions of silicate rock and metal elements.

Planets are large celestial bodies that orbit a star, such as our Sun. There are eight recognized planets in our solar system, including Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. These planets vary in size, composition, and distance from the Sun.

The solar constant of Mercury varies as the intensity of the sun changes. This rate of variation is greater than on earth. However, the mean solar constant for Mercury is 9130 W/m^2 or 9.13 kW/m^2.

our sun compared to other stars falls in the category of pretty average because our sun isn't to small or to big which helps support life on earth, itis also yellow which isn't veryhot because the hottest stars are blue or white. our sun is also in its main sequence ( like 90% of the rest of the stars

Some elements and compounds require extremely low temperatures to freeze. For example, hydrogen freezes at 14 K, which is only 14 degrees above absolute zero and equal to about 259 degrees below zero C or 434 degrees below zero F, and it boils at about 20.3 K (-252.9° C or -423.2° F).

Another example is methane. That seems to be in liquid form on the moon Titan.

Also temperatures are higher inside the gas giants than they are on the surface. Pressure also increases inside these planets. So we believe the liquid hydrogen inside Jupiter is in fact at a high temperature and pressure. The overall result is that it is a liquid.

Remember that temperatures and pressures inside planets (and moons to some extent) can be much higher than on the surface.

For example, scientists think there may be an "ocean " of liquid water under the thick ice that covers Jupiter's moon Europa.

it was found on the planet mars

Mercury's diameter (at the equator) = 48,800,000cmVenus' diameter = 121,040,000cmEarth's diameter = 127,560,000cmMars' diameter = 67,940,000cmJupiter's diameter = 1,429,840,000cmSaturn's diameter = 1,205,340,000cmUranus' diameter = 511,140,000cmNeptune's diameter = 495,320,000cm

A lunar eclipse occurs when the moon aligns in between the earth and the sun. It blocks out the light because, since the moon is closer, it appears larger. The same principle applies when you hold your hand in front of your face, in front of your computer screen.

No. During the history of Earth, the majority of rock has been been mashed and recycled into Earth's interior several times over by plate tectonics since the Earth formed. However, in 2008, there is a rock formation found in Northern Quebec that is said to be 4.28 billion years old, the oldest rocks in the world. Earth is said to be 4.6 billion years old.

The bright star or planet you are likely seeing in the eastern sky from West Central North Dakota is most likely the planet Venus. Venus is often one of the brightest objects in the night sky and is commonly visible in the early evening or morning hours. Its brightness and position make it a prominent feature in the night sky.

There are a couple of reasons. First, the gas giant planets are much larger, and therefore have much higher gravity. They CAN hold on to their atmosphere.

Secondly, Mercury is very close to the Sun, and the radiance of the Sun and the volume of the "solar wind" from up close there has blown whatever atmosphere Mercury MAY have had off into space. The gas giant planets are much further away, and the power of the Sun is correspondingly much less. Imagine standing right in front of a fan - and then moving back several feet. You'll feel the difference.

Yes, according to Kepler's laws of planetary motion, all planetary orbits are elliptical in shape. This means that planets do not orbit the sun in a perfect circle, but instead follow an elliptical path with the sun at one of the foci of the ellipse.