Q:

How far is outer space?

A:

Quick Answer

According to international scientific standards, outer space begins 100 kilometers above sea level. The boundary of outer space is called the Karman Line, and is accepted by NASA as well as international agencies.

Know More

Full Answer

The legal definition of outer space is the lowest altitude at which an orbital craft can maintain one full revolution around Earth, but this altitude is not defined. This is the threshold at which territorial airspace claims are invalid. This altitude is higher than the Karman Line; a vehicle without propulsion can sustain one revolution at 150 kilometers, while a vehicle with propulsion can sustain one full revolution at 130 kilometers.

Learn more about Space Travel

Related Questions

  • Q:

    Who invented the first space rocket?

    A:

    The first rocket to go into space was created by a team of German scientists, led by Wernher von Braun. It was a V-2 rocket used by Germany in World War II. Von Braun and many important members of his team had surrendered to the United States.

    Full Answer >
    Filed Under:
  • Q:

    Who was the first American in space?

    A:

    Alan B. Shepherd became the first American in space on May 5, 1961. He made a sub-orbital flight lasting 15 minutes aboard the Freedom 7 and reached an altitude of 116 miles in space.

    Full Answer >
    Filed Under:
  • Q:

    How do astronauts survive in space?

    A:

    The life support system installed in the space station helps astronauts live in space for extended periods of time. While in space, the life support system provides oxygen and filters out the carbon dioxide exhaled by the astronauts. In addition, astronauts go through rigorous training regimens to ensure that their bodies can handle the conditions.

    Full Answer >
    Filed Under:
  • Q:

    What were the "fireflies" that John Glenn saw?

    A:

    The mysterious "fireflies" that John Glenn saw during his first trip into space were caused by frozen condensation on the skin of his spacecraft. As the capsule moved from light into dark, the condensation froze into tiny snowflakes, and these ice crystals sparkled in the sun when dislodged.

    Full Answer >
    Filed Under:

Explore