Sunday 22 September 2019

Jun 7, 2019: NASA announces opening International Space Station to commercial activities

June 7, 2019: It is a long distance trip. NASA announced Friday that it will open the International Space Station to private astronauts, with the first visit as early as next year. The round-trip ticket would cost an estimated $58 million. Accommodations aboard the orbiting outpost will run about $35,000 per night, for trips of up to 30 days long. The space agency says only 2 visitors per year will be allowed, for some time. Private astronauts will have to meet the same medical standards and training and certification procedures as regular crew members.


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    1. Recent news about International Space Station:

      18 Mar 18, 2021 - New bacteria lurking on ISS no space oddity, says scientist

      New species were discovered in the International Space Station - but, it seems they probably didn’t come from outer space.

      4 species of bacteria - 3 of them previously unknown to science - have been discovered onboard the International Space Station (ISS). Questions are now asked about how they got there, and how they have managed to survive.

      Their discovery may also bolster future efforts to cultivate crops during long spaceflight missions. Related species of bacteria are known to promote the growth of plants and help them fight off pathogens.

      Previous studies had suggested that certain resilient strains of bacteria could survive the harsh conditions of space, including dried pellets of Deinococcus bacteria. These are listed in the Guinness World Records as the world’s toughest. This bacteria survived on the space station’s surface for 3 years. They were deliberately placed there to test the "panspermia" theory, that life exists throughout the universe and may be transported between planets by space dust, asteroids, comets, or even contaminated spacecraft.

      Panspermia (from Ancient Greek πᾶν (pan) 'all', and σπέρμα (sperma) 'seed') is the hypothesis that life exists throughout the Universe, distributed by space dust, meteoroids, asteroids, comets, planetoids, and also by spacecraft carrying unintended contamination by certain microorganisms.

      The hypothesis proposes that microscopic life-forms that can survive the effects of space (such as extremophiles) can become trapped in debris ejected into space after collisions between planets and small Solar System bodies that harbor life. Some organisms may travel dormant for an extended amount of time before colliding randomly with other planets or intermingling with protoplanetary disks. Under certain ideal impact circumstances (into a body of water, for example), and ideal conditions on a new planet's surfaces, it is possible that the surviving organisms could become active and begin to colonize their new environment. At least one report finds that endospores from a type of Bacillus bacteria found in Morocco can survive being heated to 420 °C (788 °F), strengthening the argument for panspermia. Panspermia studies concentrate not on how so-called life began, but on methods that may distribute it in the Universe. It is interesting how bacteria could be transported from one planet to another.

      Extremophiles are interesting organisms that have been discovered on Earth that survive in environments that were once thought not to be able to sustain life. These extreme environments include intense heat, highly acidic environments, extreme pressure and extreme cold. Extremophiles certainly have adapted to live in some of the most extreme environments on Earth.

      3 examples of extremophiles are Picrophilus torridus (a thermoacidophile adapted to hot, acidic conditions), Antarctic krill (a psychrophile), and the Pompeii worm (a thermophile).

      Read more about the bacteria on International Space Station here: