answersLogoWhite

0

🧪

Planetary Science

Planetary Science is the study of Planets and the Solar System, a combination of Astronomy and Earth Sciences. Find questions about the different planets and more.

25,144 Questions

How are the planets held in their orbit?

Planets are held in their orbits around the Sun by gravity. The gravitational pull from the Sun keeps the planets moving in their elliptical paths. This balance between the planet's velocity and the gravitational force from the Sun keeps them in a stable orbit.

How many plants exist in the solar system?

Currently, only Earth has known living plants. However, on Mars, NASA has been experimenting with growing plants in simulated Martian soil for potential future colonization. No other planets in our solar system are known to support plant life.

Why is light from stars and planets considered to be parallel light?

Light from stars and planets is considered parallel because the sources are at vast distances from Earth compared to their size, resulting in light rays arriving nearly parallel to each other when observed from Earth. This is due to the large distance between Earth and the celestial bodies, making the rays of light effectively parallel by the time they reach us.

What are the 2 planets that spin backwards?

Venus and Uranus are the two planets that spin backwards compared to the majority of the planets in our solar system. Venus rotates in the opposite direction to its orbit around the Sun, while Uranus is tilted on its side, causing its rotational axis to be nearly parallel to its orbit.

What is the saying to remember the planets in order?

  • My=mercury

  • Very=venus

  • Excellent=earth

  • Mother=mars

  • Just=jupiter

  • Served=saturn

  • Us=uranus

  • Noodles.=neptune

  • (This is not including Pluto)

Which planet has 21 satellites?

I don't know of any planet with exactly 21 known moons.

The best answer is probably "Uranus" with 27 moons (natural satellites).

What is Planet Eva's real name?

Planet Eva, also known as 55 Cancri e, is an exoplanet that orbits the star 55 Cancri. It is a super-Earth exoplanet and is located about 41 light-years away from Earth in the constellation of Cancer.

What is the planet nearest to the sun is called?

The planet closest to the sun is the planet Mercury. The planets in order from closest planet to the sun and out would be Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.

Is Jupiter biggest planet in solar system?

Yes, Jupiter is the largest planet in our solar system. It is more than 300 times the mass of Earth and is known for its massive size and distinctive red spot.

What effect do collisions among planetesimals of greatly varying size have on the formation of planets?

Collisions among planetesimals of greatly varying size can lead to a process called accretion, where smaller planetesimals combine to form larger bodies. This can be a critical step in the formation of planets, as larger bodies have stronger gravitational pull and can continue to grow through further collisions. However, collisions with very large planetesimals could disrupt the growing planetesimal or lead to fragmentation, affecting the final size and composition of the resulting planets.

What does beam spreading have to do with seasons?

It relates to the seasons/affects them because depending on the angle of the sunlight depends on maybe the weather or even season. Depending on the angle depends on how much sunlight there is.

Does the moon rotate around the Kaaba?

No, and for future reference the preferred English spelling is the Ka'ba. The moon gravitates around the Earth due to it's gravitational pull. Nowhere in the Qu'ran does it say that the moon rotates around the Ka'ba

Which cannot go around the earth moon boat sun plane?

The Moon can go around the Earth, and does so once every 28 days

A Boat can go around the Earth, so long as there are open waters along the path taken.

A Plane can go around the Earth, so long as it has enough fuel to do so.

This leaves the Sun. It cannot - and will not - go around (or orbit) the Earth, simply because it is significantly more massive and has a greater force of gravity. Instead, the Earth orbits around the sun.

Did the death star blow up planet naboo?

No, the Death Star did not blow up planet Naboo. In "Star Wars: Episode IV - A New Hope," the Death Star destroys the planet Alderaan, not Naboo. Naboo is shown in the prequel trilogy and remains intact throughout the original and sequel trilogies.

When do Red Giant Stars explode?

There are different processes, depending on the type (and particularly mass) of the star. Red Giants are actually a stage in the life cycle of large stars. Our star (the sun) is a yellow dwarf, and as it burns out its first stage, in 4 to 5 billion years, it will expand into a red giant. Our star is putting out massive amounts of energy, by "burning" hydrogen into helium via nuclear fusion. The heat released in this constant state of fusion is the only thing keeping our star from collapsing in on itself, because the gravity is so great. Once all of this fuel is consumed, gravity will regain its leverage over the star, pulling it back inward. The power of the gravity causes fusion again with the new metallic materials within the burnt out sun, which causes it to expand outwards with its dying breath. It is believed that the rim of the red expansion will nearly reach our Earth, or possibly consume it.

Not all red giants will explode. Smaller ones, like our sun will become, will simply collapse into a dense white dwarf, eventually fading out to a brown dwarf and extinguishing as a black dwarf star. The Chandrasekhar Limit for stellar "explosions" is about 1.4 solar masses, or 1.4 times the mass of our sun. Stars that large and larger will "nova" or shed a lot of material in the final throes of the red giant stage, before they collapse into white dwarf stars.

The small population of stars in the range from 8 to 25 solar masses will not become white dwarfs, but will instead explode as supernovas, extremely powerful blasts which compress atomic nuclei into elements heavier than iron, and spraying them out far beyond the perimeter of the progenitor star. These stars do not collapse into a white dwarf but instead leave behind an enormously dense, rapidly spinning remnant known as a neutron star. Neutron stars are essentially atomic nuclei--atoms a quarter mile across that weigh as much as a star 1.5 to 3 times the size of our sun. Clumps of neutronium (degenerate matter, neutrons packed together as close as they can get) that are smaller than that are unstable and therefore do not exist.

After stars larger than 25 solar masses expand into red giants and complete the fuel consumption cycle, they also collapse and burst into supernovas, but the resulting remnant is even denser than neutronium. These stellar remnants pinch out of normal space, forming what are known as "black holes," since their "surface" escape velocity exceeds the speed of light.

Our sun's expansion into the red giant stage is expected to occur gradually four to five billion years from now over a period of about 80 million years. It would be difficult to describe this expansion as an "explosion." The contraction into a white dwarf will probably occur faster than that. Not all red giant stars will explode--only sufficiently massive ones.

The larger a star is, the shorter its life time. Stars that will nova could burn a billion years before doing so. Really big stars could go from birth to cataclysmic death in as little as a million years. The primary factor in determining the length of time between birth (fusion ignition) and death is stellar mass.

How do you find the inner and outer radii of a circular ring are 6 cm and 9 cm respectively Find the difference between the outer and the inner circumference?

The inner radius is 6 cm, and the outer radius is 9 cm. The circumference of a circle is given by the formula C = 2πr. Therefore, the inner circumference is 2π(6) = 12π cm, and the outer circumference is 2π(9) = 18π cm. The difference between the outer and inner circumferences is 18π - 12π = 6π cm.

Why would landing a spacecraft on the surface of Jovian planet be difficult?

Despite the belief that Jupiter is a gas giant, the clouds actually hide a dense rocky core that could be 20 times the mass of earth, but that doesn't answer the question, the answer (or at least what i have researched) is that the gravity of both planets is much denser than earths (Jupiter's is 2.5 time that of earth and Saturn's is 107% that of earths, so any spacecraft we make in a long long time will be crushed like a soda can practically as soon as it lands

What type of orbit did Kepler say planets moved around the Sun in?

Kepler described the orbits of planets around the Sun as an ellipse with the Sun at one of the two foci.

Which planet has rusty dust that gives its planet atmosphere a pinkish color?

Mars has rusty dust that gives its atmosphere a pinkish hue due to iron oxide, or rust, in its soil and rocks. This coloring is particularly visible during dust storms on the planet.

Can planets be seen on a clear night with the naked eye?

Yes, some planets such as Venus, Mars, Jupiter, and Saturn are bright enough to be seen with the naked eye on a clear night. They appear as bright, star-like objects in the night sky, without the need for a telescope.

Is it possible for 2 planets to collide?

Yes. Highly unlikely, but possible. During the early days of a solar system formation (ours or anybody else's) there's all sorts of stuff flying around gradually forming planets and moons and such. It is generally believed that our Moon was formed when another large almost-planet collided with what was slowly becoming the Earth, and knocked off a big chunk of it. This was 4 BILLION years or so ago, so it's not like it happened last week or anything. And once the planets of a solar system are formed, and revolving around their star (or stars) the orbits are pretty stable. So I wouldn't worry too much about Saturn swinging around and careening into the earth.

What is the envelope of gases that surrounds a planet like earth?

The envelope of gases that surrounds a planet like Earth is called the atmosphere. It is composed of layers of gases that are held in place by the planet's gravity, providing vital protection and support for life as we know it. The atmosphere plays a crucial role in regulating temperature, protecting against harmful radiation, and facilitating weather patterns.

Which of the 4 terrestrial planets has the most gravity?

Earth is the largest and most massive of the four inner or terrestrial planets. Its surface gravity is therefore the highest of the four.

What is the function of the inner albumen?

The function of the inner albumen, also known as the egg white, is to provide a cushion and protective barrier for the developing embryo in the egg. It also contains protein that serves as a source of nutrition for the growing embryo.