Why is Beresheet doing a only a one-way trip?












5












$begingroup$


Why is the SpaceIL Lunar Lander doing a one-way trip? Is that a common project to do nowadays, to send landers to Mars and the Moon without returning them?






mars the-moon lander beresheet







share|improve this question











$endgroup$








  • 3




    $begingroup$
    Maybe because of the smaller budget that drove to have a lighter payload which did not allow for extra fuel?
    $endgroup$
    – KingsInnerSoul
    9 hours ago






  • 3




    $begingroup$
    This is a "show" mission more than a scientific mission, and a successful landing and walkabout it sufficient to make it a spectacular success for a first time deep space mission for this agency. Returning to Earth is just an opportunity to fail, whereas success may bring interest in a follow-on mission.
    $endgroup$
    – uhoh
    8 hours ago






  • 9




    $begingroup$
    It is very common for Mars landers not to return. In fact, it is ubiquitous.
    $endgroup$
    – Organic Marble
    8 hours ago










  • $begingroup$
    One way trips are and have always been the norm in space exploration. The few sample return missions (mentioned by @Hobbes) are very much the exceptions.
    $endgroup$
    – ben
    4 hours ago










  • $begingroup$
    Next up in this series of questions: "Why didn't the space shuttle fly to the Moon?", "why didn't Apollo missions swing by Venus?", and "why didn't New Horizons land on Europa en route to Pluto?"...
    $endgroup$
    – user2705196
    4 hours ago
















5












$begingroup$


Why is the SpaceIL Lunar Lander doing a one-way trip? Is that a common project to do nowadays, to send landers to Mars and the Moon without returning them?






mars the-moon lander beresheet







share|improve this question











$endgroup$








  • 3




    $begingroup$
    Maybe because of the smaller budget that drove to have a lighter payload which did not allow for extra fuel?
    $endgroup$
    – KingsInnerSoul
    9 hours ago






  • 3




    $begingroup$
    This is a "show" mission more than a scientific mission, and a successful landing and walkabout it sufficient to make it a spectacular success for a first time deep space mission for this agency. Returning to Earth is just an opportunity to fail, whereas success may bring interest in a follow-on mission.
    $endgroup$
    – uhoh
    8 hours ago






  • 9




    $begingroup$
    It is very common for Mars landers not to return. In fact, it is ubiquitous.
    $endgroup$
    – Organic Marble
    8 hours ago










  • $begingroup$
    One way trips are and have always been the norm in space exploration. The few sample return missions (mentioned by @Hobbes) are very much the exceptions.
    $endgroup$
    – ben
    4 hours ago










  • $begingroup$
    Next up in this series of questions: "Why didn't the space shuttle fly to the Moon?", "why didn't Apollo missions swing by Venus?", and "why didn't New Horizons land on Europa en route to Pluto?"...
    $endgroup$
    – user2705196
    4 hours ago














5












5








5





$begingroup$


Why is the SpaceIL Lunar Lander doing a one-way trip? Is that a common project to do nowadays, to send landers to Mars and the Moon without returning them?






mars the-moon lander beresheet







share|improve this question











$endgroup$




Why is the SpaceIL Lunar Lander doing a one-way trip? Is that a common project to do nowadays, to send landers to Mars and the Moon without returning them?






mars the-moon lander beresheet




mars the-moon lander beresheet






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 5 hours ago









Glorfindel

2031210




2031210










asked 9 hours ago









Geordi La ForgeGeordi La Forge

318126




318126








  • 3




    $begingroup$
    Maybe because of the smaller budget that drove to have a lighter payload which did not allow for extra fuel?
    $endgroup$
    – KingsInnerSoul
    9 hours ago






  • 3




    $begingroup$
    This is a "show" mission more than a scientific mission, and a successful landing and walkabout it sufficient to make it a spectacular success for a first time deep space mission for this agency. Returning to Earth is just an opportunity to fail, whereas success may bring interest in a follow-on mission.
    $endgroup$
    – uhoh
    8 hours ago






  • 9




    $begingroup$
    It is very common for Mars landers not to return. In fact, it is ubiquitous.
    $endgroup$
    – Organic Marble
    8 hours ago










  • $begingroup$
    One way trips are and have always been the norm in space exploration. The few sample return missions (mentioned by @Hobbes) are very much the exceptions.
    $endgroup$
    – ben
    4 hours ago










  • $begingroup$
    Next up in this series of questions: "Why didn't the space shuttle fly to the Moon?", "why didn't Apollo missions swing by Venus?", and "why didn't New Horizons land on Europa en route to Pluto?"...
    $endgroup$
    – user2705196
    4 hours ago














  • 3




    $begingroup$
    Maybe because of the smaller budget that drove to have a lighter payload which did not allow for extra fuel?
    $endgroup$
    – KingsInnerSoul
    9 hours ago






  • 3




    $begingroup$
    This is a "show" mission more than a scientific mission, and a successful landing and walkabout it sufficient to make it a spectacular success for a first time deep space mission for this agency. Returning to Earth is just an opportunity to fail, whereas success may bring interest in a follow-on mission.
    $endgroup$
    – uhoh
    8 hours ago






  • 9




    $begingroup$
    It is very common for Mars landers not to return. In fact, it is ubiquitous.
    $endgroup$
    – Organic Marble
    8 hours ago










  • $begingroup$
    One way trips are and have always been the norm in space exploration. The few sample return missions (mentioned by @Hobbes) are very much the exceptions.
    $endgroup$
    – ben
    4 hours ago










  • $begingroup$
    Next up in this series of questions: "Why didn't the space shuttle fly to the Moon?", "why didn't Apollo missions swing by Venus?", and "why didn't New Horizons land on Europa en route to Pluto?"...
    $endgroup$
    – user2705196
    4 hours ago








3




3




$begingroup$
Maybe because of the smaller budget that drove to have a lighter payload which did not allow for extra fuel?
$endgroup$
– KingsInnerSoul
9 hours ago




$begingroup$
Maybe because of the smaller budget that drove to have a lighter payload which did not allow for extra fuel?
$endgroup$
– KingsInnerSoul
9 hours ago




3




3




$begingroup$
This is a "show" mission more than a scientific mission, and a successful landing and walkabout it sufficient to make it a spectacular success for a first time deep space mission for this agency. Returning to Earth is just an opportunity to fail, whereas success may bring interest in a follow-on mission.
$endgroup$
– uhoh
8 hours ago




$begingroup$
This is a "show" mission more than a scientific mission, and a successful landing and walkabout it sufficient to make it a spectacular success for a first time deep space mission for this agency. Returning to Earth is just an opportunity to fail, whereas success may bring interest in a follow-on mission.
$endgroup$
– uhoh
8 hours ago




9




9




$begingroup$
It is very common for Mars landers not to return. In fact, it is ubiquitous.
$endgroup$
– Organic Marble
8 hours ago




$begingroup$
It is very common for Mars landers not to return. In fact, it is ubiquitous.
$endgroup$
– Organic Marble
8 hours ago












$begingroup$
One way trips are and have always been the norm in space exploration. The few sample return missions (mentioned by @Hobbes) are very much the exceptions.
$endgroup$
– ben
4 hours ago




$begingroup$
One way trips are and have always been the norm in space exploration. The few sample return missions (mentioned by @Hobbes) are very much the exceptions.
$endgroup$
– ben
4 hours ago












$begingroup$
Next up in this series of questions: "Why didn't the space shuttle fly to the Moon?", "why didn't Apollo missions swing by Venus?", and "why didn't New Horizons land on Europa en route to Pluto?"...
$endgroup$
– user2705196
4 hours ago




$begingroup$
Next up in this series of questions: "Why didn't the space shuttle fly to the Moon?", "why didn't Apollo missions swing by Venus?", and "why didn't New Horizons land on Europa en route to Pluto?"...
$endgroup$
– user2705196
4 hours ago










1 Answer
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14












$begingroup$

A one-way trip is much simpler and much cheaper than a return mission.




  • a return mission is more complicated because it has to do more

  • a return mission is much heavier (because of the extra systems, and the fuel needed for the return capsule) which means it needs a bigger launcher which is more expensive


We have had no sample return missions from any planet. There were a few from the Moon (Apollo and Luna), and a few from objects like asteroids and comets (e.g. Hayabusa).



The SpaceIL mission is a small, low-cost mission done as a technology demonstration. A return mission would have cost 10x more.






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    1 Answer
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    active

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    14












    $begingroup$

    A one-way trip is much simpler and much cheaper than a return mission.




    • a return mission is more complicated because it has to do more

    • a return mission is much heavier (because of the extra systems, and the fuel needed for the return capsule) which means it needs a bigger launcher which is more expensive


    We have had no sample return missions from any planet. There were a few from the Moon (Apollo and Luna), and a few from objects like asteroids and comets (e.g. Hayabusa).



    The SpaceIL mission is a small, low-cost mission done as a technology demonstration. A return mission would have cost 10x more.






    share|improve this answer









    $endgroup$


















      14












      $begingroup$

      A one-way trip is much simpler and much cheaper than a return mission.




      • a return mission is more complicated because it has to do more

      • a return mission is much heavier (because of the extra systems, and the fuel needed for the return capsule) which means it needs a bigger launcher which is more expensive


      We have had no sample return missions from any planet. There were a few from the Moon (Apollo and Luna), and a few from objects like asteroids and comets (e.g. Hayabusa).



      The SpaceIL mission is a small, low-cost mission done as a technology demonstration. A return mission would have cost 10x more.






      share|improve this answer









      $endgroup$
















        14












        14








        14





        $begingroup$

        A one-way trip is much simpler and much cheaper than a return mission.




        • a return mission is more complicated because it has to do more

        • a return mission is much heavier (because of the extra systems, and the fuel needed for the return capsule) which means it needs a bigger launcher which is more expensive


        We have had no sample return missions from any planet. There were a few from the Moon (Apollo and Luna), and a few from objects like asteroids and comets (e.g. Hayabusa).



        The SpaceIL mission is a small, low-cost mission done as a technology demonstration. A return mission would have cost 10x more.






        share|improve this answer









        $endgroup$



        A one-way trip is much simpler and much cheaper than a return mission.




        • a return mission is more complicated because it has to do more

        • a return mission is much heavier (because of the extra systems, and the fuel needed for the return capsule) which means it needs a bigger launcher which is more expensive


        We have had no sample return missions from any planet. There were a few from the Moon (Apollo and Luna), and a few from objects like asteroids and comets (e.g. Hayabusa).



        The SpaceIL mission is a small, low-cost mission done as a technology demonstration. A return mission would have cost 10x more.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered 7 hours ago









        HobbesHobbes

        93.5k2260415




        93.5k2260415






























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