space travel

Forum discussion tagged with space travel.
  1. Space 'elevator' to the 🌒 moon

    Subject: space elevator technology promises exceptional earth-space transport capacity at low cost and with much less pollution. Some concepts promise a feasible development cost of $1 billion USD (far cheaper than for example Ariane 6 that costed $6 billion USD to develop). Question: why are...
  2. akashrao

    voyager 1 and voyager 2

    we know of the famous voyager spacecraft which flew out in 2 editions - 1 and 2 in 1977 ... they carry human voice and form to be found in interstellar space should they come across an alien life out there ... where are the 2 spacecraft now? how rich that their services were to our...