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Many probes study Earth or measure properties of space

Others use telescopes and other instruments that help study stars, planets and galaxies that are far away

It studies more than just Earth

Can land, flyby or orbit planetary bodies and enter interstellar space

There are no astronauts in probes

They send data back information for scientist to study

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Sputnik 1

Was the first probe to enter space

Launched October 4, 1957 by the former Soviet Union

Studied Earth from space

Learned what it is like to be in space

Voyager 1

Traveled farther than any human made object

Launched in 1977

Flew past Jupiter and Saturn and headed toward the edge of our solar system

As of February 1, 2010 it was 16.8 billion kilometers away from Earth

Europa Clipper

Will find detailed information on Jupiter's moon Europa

It will research if this moon can hold life or not

Planning to launch in the 2020’s

Sputnik 1 is shown below

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-An Orbiter is a space probe that orbits a planet or other astronomical object.
-Orbiters have been used to capture images of mars and send those images back to earth for study.
-They were built to bring back samples of dust and rocks from mars.

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The purpose the hubble space telescope is to gather light from cosmic objects, so scientists can look at the universe around us and to understand more about the universe-(so we can look at pictures and other detailed things around us)
The Hubble space telescope is the largest telescope in the outer space, it was launched in 1990. The weight is 24,500 lbs and is 43.5 ft long and costs about 2.5 billion dollars. The space Hubble has six cameras. It also has a 8 ft diameter mirror. It travels around  earth 5 miles per second.

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The goals for the Hubble space telescope was to get clear picture of distant galaxies and stars and planets in our solar system, It has taken pictures of galaxies and stars and etc. It has done its goal

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A past mission of Rovers was the Mars Pathfinder which carried Sojourner onto the surface of mars. All Rovers need Landers to carry them but Landers do not need Rovers. There were 2 Rovers launched in 2003. They are named Spirit and Opportunity. They have far greater mobility than the 1997 Mars Pathfinder rover. Each rover carries a sophisticated set of instruments to search for evidence of liquid water that may have been present in the planet's past. The rovers are identical to each other, but are exploring different regions of Mars. Although Spirit stopped operating March 22, 2010 Opportunity is still operating. In 2015, Opportunity broke the record for extraterrestrial travel by rolling greater than the distance of a 26-mile or a Marathon

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There are deep canyons, volcanic mountains and craters of all sizes formed by meteorites. Some areas are covered with boulders; others are shrouded in sand dunes. In addition, landers must rapidly decelerate from 13,000 miles per hour in a matter of minutes. Mars-Mars 3, Mars 2, Mars 5, Mars 6 have all landed on Mars.

Venus-Venera 3, Venera 7 have landed on Venus.

Titan-Huygens landed on Titan.
A future mission will be Insight to study the deep interior.

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The Telescope is still going to take picture's and show us the universe and the world around us.

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It's past missions was taking pictures of the universe, it's the same thing it will be doing in the future.

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The hubble space telescope was named after Edwin P. Hubble

The hubble space telescope has made over 1.3 million observation

Some past missions the telescope has done is take a lot of pictures and expand our knowledge of the universe around us.

The team is wanting to keep the telescope up in space until 2020-to keep taking pictures and to look at how detailed space is.

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-NASA had 8 orbiters that are no longer in use.

Mariner 9 Mars Orbiter.

Cassini Saturn Orbiter.

Mars Global Surveyor.

TOPEX/Poseidon Earth Orbiter.

Ulysses Solar Polar Orbiter.

Jason Earth Orbiter.

Mars '01 Orbiter.

Magellan Venus Orbiter.

-John Glenn was the oldest person to reach space in a orbiter launched on October, 1998.

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-Mariner 9 Mars Orbiter
The Mariner Mars 71 mission was planned to consist of two spacecraft to orbit Mars on complementary missions, but due to the failure of Mariner 8 to launch properly, only one spacecraft was available. Mariner 9 combined mission objectives of both Mariner 8 and Mariner 9. After a successful launch Mariner 9 was the first spacecraft to orbit another planet.

-Cassini Saturn Orbiter
Cassini was launched on October 15, 1997, into the planet Saturn to ensure Saturn’s moons will remain pristine for future exploration. Beginning in 2010, Cassini began a seven-year mission extension in which it completed many moon flybys while observing seasonal changes on Saturn and Titan.
The plan for this phase of the mission was to expend all of the spacecraft’s propellant while exploring Saturn, ending with a plunge into the planet’s atmosphere.

-Mars Global Surveyor
Launched November 7, 1996, Mars Global Surveyor became the first successful mission to the red planet in two decades. After a year and a half spent trimming its orbit from a looping ellipse to a circular track around the planet, the spacecraft began its prime mapping mission in March 1999. It has continued to observe the planet from a low-altitude, nearly polar orbit ever since.The mission has studied the entire Martian surface, atmosphere, and interior. One of the most exciting observations of the spacecraft's wide-angle camera system, known as the Mars Orbital Camera, is that the red planet has very repeatable weather patterns.