Artificial Satellites

Saturn has 82 known moons, with the largest being Titan.

Satellites use a combination of chemical propellants such as hydrazine, xenon gas for ion thrusters, or a mixture of chemicals for solid rocket boosters. The choice of fuel depends on the satellite's specific mission requirements and propulsion system.

Sputnik led to the space race and the development of the Apollo program. It proved that humans could successfully launch objects into Earth's orbit, paving the way for space exploration and satellite technology.

The first artificial satellite launched by the US was Explorer 1. It was launched on January 31, 1958, and its successful launch marked the beginning of the US space program. Explorer 1 discovered the Van Allen radiation belts during its mission.

The first Russian satellite, Sputnik 1, orbited the Earth on October 4, 1957. It was the world's first artificial satellite to be launched into space.

Sputnik traveled at an average speed of 27,600 kilometers per hour (17,100 miles per hour) in its orbit around Earth. Its orbit took approximately 96.2 minutes to complete one revolution around the planet.

Yes, some are visible. The Space Station is one of them.

Satellites in polar orbits travel from the North Pole to the South Pole and back again with each orbit, providing global coverage. Some examples of satellites in polar orbit are the NOAA series of weather satellites, the Aqua and Terra Earth observation satellites, and the International Space Station.

PSLV is an abbreviation for Polar Satellite Launch Vehicle. It is a space rocket indigenously developed by the Indian Space Research Organisation. It is used to launch Indian as well as foreign satellites into orbit. It currently holds the world record for launching the most amount of satellites at a time (10!).
It recently launched India's first moon probe - Chandrayaan-1.

Satellites can vary in weight depending on their size and purpose. Small satellites known as CubeSats can weigh as little as a few kilograms, while larger communication or weather satellites can weigh several tons. The weight of a satellite is an important factor for determining its launch vehicle and orbit.

A geostationary satellite is positioned in space to remain fixed relative to a specific point on the Earth's surface, allowing it to provide consistent coverage for telecommunications, weather monitoring, and broadcasting. This stationary position enables uninterrupted communication and data transmission between ground stations and the satellite.

Atmospheric studies satellites were some of the very first satellites launched into space. They generally have pretty low Earth orbits. they are used to study the Earth'satmosphere.

Alouette, the first satellite launched by Canada, was also the world's first atmospheric studies satellite. The purpose of Alouette was to study the Earth's ionosphere (a charged layer of the atmosphere). With the help of Atmospheric Studies Satellite Canadian scientists were trying to learn more about the aurora borealis, or northern lights - disturbances of the ionosphere in the atmosphere which create brilliant lights in the northern skies at night, but disturb radio communications.

The orbit of Sputnik I (first artificial satellite) was highly elliptical, ranging from 223 to 939 kilometres (133 to 533 miles) above the Earth. It orbited for almost exactly 3 months, completing 1440 orbits before burning up on reentry on January 4, 1958.

Satellites are located in various orbits around the Earth, such as low Earth orbit (LEO), medium Earth orbit (MEO), and geostationary orbit (GEO). The specific location of a satellite depends on its intended purpose, whether for communication, weather monitoring, navigation, or other functions.

A polar orbit is used for various purposes, such as Earth observation, weather monitoring, and environmental research. It provides global coverage as it allows a satellite to pass over the entire surface of the Earth while remaining in a north-south direction. This type of orbit is particularly useful for capturing images of the entire planet or studying changes in polar regions.

Satellites typically use solar panels to convert sunlight into electricity. This electricity is used to power the satellite's systems and keep it running while in space. Some satellites may also have batteries for storing energy to use when not exposed to sunlight.

Yes, it is possible to see satellites from the ground with the naked eye. Satellites are typically visible during the early morning or evening hours when the sun's light reflects off them. They appear as moving points of light in the night sky.

You can see satellites orbiting. If you go on a clear night to somewhere which is far from city lights, you will sometimes see dots moving across the sky - these are satellites reflecting sunlight.

Sputnik was a satellite, so there were various instruments and technology inside the sphere, including radio transmitters and batteries for power. These components allowed Sputnik to transmit data back to Earth and pave the way for future space exploration.

The first satellite was launch in 1957 so that would mean that this year (2012) it has been around for more than half a century (55 years).

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That first artificial satellite was launched by the USSR, who called it 'Sputnik One'. It was a simple test vehicle whose radio transmitted just a call-sign - the tune "The East Is Red" I believe. 1957 was celebrated International Geophysical Year for this and other technical achievements.

There are more than 800 active satellites currently in orbit. They represent four percent of the total number of objects currently cataloged by the U.S. space surveillance network; the rest includes abandoned satellites, spent rocket boosters, and other debris. The United States owns more than 400 active satellites, just over 50 percent of all satellites. Russia and China have the second and third highest number of space assets, owning 89 and 35 satellites, respectively. Civilian satellites, which perform tasks for the commercial, scientific, and government sectors, make up the majority of U.S. satellites. Russia's space assets are split nearly evenly between military and civil missions, though there are not separate military and civilian space programs. Only a very small percentage of other countries' satellites are military in nature. www.ucsusa.org/nuclear_weapons_and_global_security/space_weapons/technical_issues/satellites-types-orbits.html

Satellites can vary significantly in size, ranging from small CubeSats that are about the size of a shoebox to large satellites that are as big as a school bus. The size of a satellite depends on its specific purpose and the equipment it carries.

Asteroids, astronauts, and auroras are examples of things in space that start with the letter "a."

yes

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Russia sent the first probe Venera 1 in 1961.

The first successful Venus probe was NASA's Mariner 2, which confirmed its high surface temperatures In 1966

Venera 3 became the first spacecraft to reach the surface of another planet when it crash-landed on Venus.

Its successor Venera 4 succeeded in returning data during its descent, reporting that the atmosphere of Venus was 95% carbon dioxide and the surface pressure around 100 times greater than on Earth.

Venera 7 made the first successful soft landing in 1970.

In 1975, Venera 9 and 10 were the first spacecraft to enter an orbit around Venus, each also dispatching a lander to the surface.

They were followed by several other NASA and Soviet orbiter/lander missions during the late 1970s and 1980s, including Veneras 11 through 16, Pioneer Venus, and Vega.

Between 1990 and 1994, NASA's Magellan orbiter mapped 98% of the surface using radar.

The European Space Agency's Venus Express arrived in orbit around the planet in 2006, and is currently studying its atmosphere and surface characteristics.

Akatsuki was launched on May 20, 2010, by JAXA, and will enter Venusian orbit in December 2010.

The first artificial satellite launched into space was called Sputnik 1. It was launched by the Soviet Union on October 4, 1957.