Artificial Satellites

Syncom 2 was launched in 1963, the worlds first geo synchronous satellite. These are special types of satellites that are launched much further out into higher orbit around the earth. The greater the distance from earth, the longer it takes for the satellite to orbit. You eventually get to a special distance where the time taken to orbit is equal to one day, the same as one spin of the earth, so the satellite can effectively hold a position relative to the surface of the earth. This means they can be easily tracked with stationary satellite dishes.

Hale-Bopp was discovered on July 23, 1995 at a great distance from the Sun, raising expectations that the comet would brighten considerably by the time it passed close to Earth. Hale-Bopp met or exceeded most predictions when it passedperihelion on April 1, 1997. The comet was dubbed the Great Comet of 1997.

The passage of Hale-Bopp was notable also for inciting a degree of comet related panic. Rumours that an alien spacecraft was following the comet gained remarkable interest, and inspired a mass suicide among followers of the Heaven's Gate cult. Probably helped by UFO enthusiasts, who concluded that there was an alien spacecraft following the comet. Choosing the appearance of the comet as a signal for their mass suicide. They claimed they were leaving their earthly bodies to travel to the spaceship following the comet.

Its lengthy period of visibility and extensive coverage in the media meant that Hale-Bopp was probably the most observed comet in history, making a far greater impact on the general public than the return of Halley's Comet in 1986, and certainly seen by a greater number of people than witnessed any of Halley's previous appearances. It was a record breaking comet the furthest comet from the Sun discovered by amateurs, with the largest well measured cometary nucleus known after Chiron, and it was visible to the naked eye for twice as long as the previous record holder. It was also brighter than magnitude 0 for eight weeks, longer than any other recorded comet.

Edmond Halley.

Sputnik 1 is the first satellite to be put into orbit and it was done by the Russians. It contributed largely to the Red Scare of Communist Russia against the U.S. Other than that i dont know much more...yet Explorer 1 was the USA's answer to the Soviet Union, it was their first ever satellite.

A natural satellite is a moon. Saturn has sixty-two known moons, fifty-three of which actually have official names. There are hundreds of smaller objects that make up Saturn's rings. Saturn's moon Titan is larger than the planet Mercury, and is the second largest moon in the solar system.

The farthest man-made object from Earth is Voyager 1 spacecraft, which was launched by NASA in 1977. It has since traveled beyond our solar system and continues to transmit data back to Earth. Hubble Space Telescope is in low Earth orbit and not as far from Earth as Voyager 1.

It is not gravity because there is no gravity in space, only some on certain planets, deffiantly on earth. It is done by the strength from other planets the sun for instance. Heat waves. Some of the gravity in space does help keep the planets and satellites in orbit.

The Solar and Heliospheric Observatory (SOHO) was launched on December 2, 1995.

LEO (Low-Earth-Orbit)-100 to 1000 miles out

• Used for wireless e-mail, special mobile telephones, pagers, spying, videoconferencing

MEO (Middle-Earth-Orbit)-1000 to 22,300 miles

• Used for GPS (global positioning systems) and government

GEO (Geosynchronous-Earth-Orbit)-22,300 miles

• Always over the same position on earth (and always over the equator)

• Used for weather, television, government operations

HEO (Highly Elliptical Earth orbit)-satellite follows an elliptical orbit

• Used by the military for spying and by scientific organizations for photographing celestial bodies

mandeleev didn't know spaces in the Periodic Table because he doesn't arrange it john Kepler arrange it most of mendeleev discoveries of elements are few most of other element where discover by other scientist after him in 19th century

Phobos is named after the Son of the Greek god Mars. These moons orbit Mars.

A Galilean satellite is one of the four largest moons of Jupiter discovered by Galileo Galilei in 1610. These moons are Io, Europa, Ganymede, and Callisto. They are also known as the Galilean moons and are some of the largest and most geologically diverse moons in our solar system.

Satellites are made by 3 types of organizations:

# Commercial Companies (e.g. Telecommunication) # Governments (e.g. NASA, ROSKOSMOS, ESA) # Universities and other scientific institutes. Each of course for there own business or research.

active satellites are receives the transmitted signal from earth ,amplify the signal and transmit it. it is also called as transponders. but passive satellites just receive and transmit the signal.itac as the reflector

There are currently 32 satellites, a gps system needs to receive a signal from at least 3 of them to function. Older systems only used 3-4 but new systems can use up to all 32 the more satellites that a system uses....the greater the accuracy.

One famous superstition related to comets is that they are omens of impending disaster or significant events. Throughout history, people have associated comets with disasters such as wars, plagues, or the deaths of prominent figures. This belief has persisted in various cultures, despite comets being scientifically understood as icy bodies orbiting the Sun.

No. Venus has no natural satellites (moons). Neither does Mercury.

Venus has no natural satellites. It does have two artificial satellites (space probes). Venus is one of the two planets in our solar system (together with Mercury) that have no moon/natural satellite.

Things falling to Earth from space travel at such a speed that the friction of passing through the atmosphere make them hot enough to burn. Anything us humans wants to retrieve from space has to be protected by highly efficient heat shields to survive re-entry.

Yes, it is very possible, although not often done (deliberately). The easiest way is to simply let it crash. The other option is to send another craft up and collect it, although the latter is usually quite expensive compared to just building another and sending it up instead.

The speed of the satellite will remain the same regardless of doubling the mass, as long as the radius of its orbit remains constant. The speed of the satellite in orbit is determined by the gravitational force between the satellite and the celestial body it is orbiting, not the mass of the satellite itself.

In food production, satellite farming is a production strategy that consists of a central farm which purveys the best genetics to satellite farms which are production centers of the final consumer product.

Most satellites are launched to the east to utilize the earth's rotation as an extra propelling force. The earth is rotating in a counter-clockwise direction when viewed from the North Pole (from west to east), and when we launch our satellites east we take advantage of this momentum (angular momentum) from the earth's rotation. In effect, a rocket sitting still on the launch pad at Cape Canaveral is ALREADY GOING EAST, at about 800 miles per hour!

On the other hand, if we launch them westward, the satellites will have to fight against the angular momentum of the earth's rotation, which means more power is needed to break through the earth's atmosphere. As many of us might not have noticed, we are moving at a breathtaking speed just by standing still (about 1000miles/hour at the equator, and decreasing with increasing latitude) when viewed from outer space. Launching our satellites eastward will harvest this power and save on fuel cost, and in space shuttle terms, that's a lot of money!

However, not ALL satellites are launched to the east; some are launched to the south. Some relatively small percentage of satellites are launched into polar orbits so that they orbit the Earth from south to north, and then north to south. The Earth spins west to east, so that the effective ground path of the satellite is covers the Earth like a ball of twine. American satellites launched into polar orbits are often launched from Vandenberg AFB in California, where a launch to the south keeps the rocket over water for several thousand miles.