Planetary Science

Right now, there is no plan, project, budget, funding, campaign,

or research program leading to anybody going to any other planet

any time in the future. If one does start up, it will be to Mars.

Evidence for the past existence of surface water on Mars includes features like dried-up river channels, lake beds, and mineral deposits that form in the presence of water. Present evidence includes the detection of hydrated minerals and recurring slope lineae, which are dark streaks on Martian slopes that appear to change over time, possibly indicating the presence of briny water.

When performing a rotation, you do not need to know the exact coordinates of the center of rotation. All you need is the angle of rotation and the shape or object being rotated.

The Ptolemaic model is also known as the geocentric model, where the Earth is at the center of the solar system. Scientists refute this because orbital paths show that the solar system is heliocentric.

The outer planets, also known as gas giants, are primarily composed of hydrogen and helium. These planets have thick atmospheres made up of gases like methane, ammonia, and water vapor. Beneath their atmospheres, gas giants have dense layers of metallic hydrogen and rock.

The moon is tidally locked with the Earth, meaning it rotates on its axis at the same rate that it orbits the Earth. This synchronous rotation occurs because the gravitational forces between the Earth and the moon have caused their rotations to become synchronized over time. As a result, the same side of the moon always faces the Earth.

Jupiter has at least 79 confirmed moons, making it the planet with the most moons in our solar system. The four largest moons of Jupiter are known as the Galilean moons and are named Io, Europa, Ganymede, and Callisto.

Without more specific information, it is difficult to determine what the bright object might be. Planets, satellites, and stars are all possibilities, depending on factors like time of day, location, and other celestial objects nearby. Using a stargazing app or astronomy website can help you identify the object based on your location and time.

The Earth's orbit around the Sun is more circular and consistent, while a comet's orbit is typically more elliptical and variable. Comets also come from the outer solar system and have highly eccentric orbits that can bring them close to the Sun, leading to the development of a bright coma and tail due to the heat and radiation.

Jupiter is the planet with the most moons. It has 63 confirmed moons.

because its axis is tilted

Astronomers cannot locate extrasolar planets with telescopes because these planets are outside of our solar system and too far away for telescopes to directly observe. Instead, astronomers use indirect methods such as radial velocity and transit techniques to detect these distant planets.

The general trend of temperature shown on a North American surface temperature contour plot is that temperatures decrease as you move from south to north. This is due to the latitude effect, where regions closer to the equator receive more direct sunlight and therefore tend to be warmer compared to regions farther away.

Terrestrial navigation refers to the process of navigating through land or water by using landmarks, maps, compasses, and other instruments instead of relying on electronic or satellite-based systems such as GPS. It is commonly used in activities such as hiking, sailing, and exploration.

The low path at the bottom of the hill is commonly referred to as a valley or a ravine.

Uranus is made of 82.5% of molecular hydrogen ,15.2% helium 2.3 % methane ,and also known to have hydrogen deuteridexist with possible aerials of ammonia ice ,water ice ,ammonia hydro sulfide and methane ice

Earth is unique in having the right conditions for life to exist, such as the presence of liquid water, a suitable atmosphere, and a stable climate. The combination of these factors has allowed life to thrive on Earth, while other planets in our solar system do not possess all of these characteristics. Additionally, the origin of life on Earth is still a topic of scientific investigation.

The earths gravity. The more mass a body has, the more gravity, The Earth has enough mass to hold an atmosphere.

The Moon, on the other hand, is not massive enough, and so does not have a high enough gravity, which prevents it from holding an atmosphere.

Given that Pluto is now considered a dwarf, our solar system actually contains 8 planets and 5 dwarf planets. The planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. The dwarf planets are Ceres, Pluto, Haumea, Make, and Eris. To be considered a planet, and not a dwarf planet, the body has to orbit the sun, have enough gravity to pull itself into a sphere, and to have cleared objects out of its orbit.

It takes Mars 687.0 days to make one orbit around the sun (or 1.88 times for every one earth year).

They're not. There's no real scientific consensus, but most scientists agree that given the immensity of the universe, it's almost arrogant to assume we are the only denizens inside of it.

If you're still interested, look up the Drake Equation on Wikipedia, or watch this video of Carl Sagan explaining it: [See related link]

The heat above a fire is hotter because the flames rise vertically, heating the air around them and creating a convection current that draws in cooler air. This process results in a higher concentration of heat above the fire compared to the sides.