Space Exploration Timeline

  • 100


    Greek, Hero of Alexandria, invented a rocket-type device called an aeolipile. It used steam as the gas to propel the rocket. Hero placed a sphere above a water kettle. A fire under the kettle converted the water into steam, and the gas traveled through pipes to the sphere.
  • 100


    Mercury was known about since ancient times. It is a rocky, and bumpy planet just like the moon. Only two probes have been to Mercury, they are Mariner 10 and Messenger.
  • 100


    It is unknown who dicovered venus, considering it is the brightest planet visible to the naked eye, and when they discovered it. Over forty spacecraft have visited this planet, It is a hot planet with a thick and toxic atmosphere. Venus's surface is rocky and has over thousands of volcanoes.
  • Period: 140 to

    The Life of Ptolemy

    ptolemy: around the year of 140 A.D. Cladius Ptolemy developed geocentric theory. a theory that stated that the planet earth is the center of the universe and that all other planets revolved around it. this theory was proven and disproven many times but the current belief throughout earth’s population says otherwise. the more common belief today is referred to as heliocentric theory and places the sun to the center of the universe. Ptolemy died in the year 168 AD.
  • Jan 1, 1232

    First Real Rocket

    First Real Rocket
    The date reporting the first use of true rockets was in 1232 AD. At the time, the Chinese and the Mongols were at war. These fire-arrows were a not complex form of a solid-propellant rocket. A cylinder,
    closed on one end, which held gunpowder. The opposite end was open and the tube was connected to a large, straight stick. When the gunpowder was lit, the rapid burning of the gunpowder created fire, gas, and smoke that escaped out the open end and produced a thrust.
  • Period: Feb 19, 1473 to May 24, 1543

    The Life of Copernicus

    Copernicus: Nicolaus Copernicus completely changed the beliefs of the common people by revealing to the world that in fact the sun was the center of the universe rather than the earth this is what started what people began to call the copernican revolution. copernicus was born in the year 1473 february the 19th in poland and passed away may 24, 1543 in the same area of poland.
  • Neptune

    Johann Gottfried Galle was the first man to see Neptune, but he dicovered it because of the work of an english and a french mathematician, Voyager 2 is the only spacecraft so far that has gone to neptune. It is a gas giant, meaning that Neptune is composed mainly of gas.
  • Robert Goddard

    Robert Goddard
    Built the first liquid fueled rocket and was known as the founding father of modern rocketry.
  • The V-2 rocket is launched

    The V-2 rocket is launched
    This rocket was made and launched by Geramny. It was the first man made object to acheive suborbital, reaching an altitude of approximately 62.1 miles.
  • U.S. launches rebuilt V-2 rocket

    U.S. launches rebuilt V-2 rocket
    The U.S. launched an improved form of the German V-2 racket. This version reaching an altitude of 70 miles.
  • Sputnik Launch

    Sputnik Launch
    Sputnik was the first man made satellite in history. Many people were surprised that the Russians had the technology to control sputnik, and could successfully launch the satellite. Some people think of this as the begginning of the space race.
  • Sputnik II is launched

    Sputnik II is launched
    On this day the soviets launched another satellite, Sputnik II. Along with the launch of Sputnik II a dog, named laika, was sent into space. Laika survived only a day or two because of tempurature problems.
  • Explorer 1

    Explorer 1
    Explorer 1 was the first American satellite. Its mission wwas to collect data about radiation in the higher pat of the atmosphere. Many people consider this as the start of the space race.
  • Luna 2 lands on the moon

    Luna 2 lands on the moon
    This soviet satellite was the first man made obbject to land on the moon. The mission confirmed that the Moon had no appreciable magnetic field, and found no evidence of radiation belts at the Moon.
  • Yuri Gagarin

    Yuri Gagarin
    was a soviet cosmonaut who later in 1961 became the first person to travel into space.
  • John Glenn

    John Glenn
    was the first U.S astronaut to orbit Earth, he also was a Ohio senator.
  • Surveyor 1 is launched

    Surveyor 1 is launched
    Surveyor 1 was the first American spacecraft to land on the moon. The primary objective of the surveyor series was to help the Apollo program to be a success.
  • Period: to

    Neil Armstrong/Appolo 11

    Neil Armstrong was an american astronaut and the first person to walk on the moon.He became an astronaut in 1962, Apollo 11 was Neil Armstrong's second flight, in 1969. His words when he stepped on the moon were “Thats one small step for (a) man, one giant leap for mankind.”
  • Buzz Aldrin

    Buzz Aldrin
    was one of the first people to walk on the moon and made the apollo 11 moon walk.
  • Mae C. Jemison

    Mae C. Jemison
    Was the first African American women to go into space.