Everyday Japanese ㊼ (Particles: parallel markers か) Parallel Marker か: A or B e.g. わたしは日本語(にほんご)か英語(えいご)をべんきょうします。 Watashi wa nihongo ka eigo wo benkyou shimasu. I study Japanese or English. * The function is …

As many as a dozen private astronauts could visit the ISS per year, NASA said. (Shutterstock/Vadim Sadovski) NASA said Friday it will open up the International Space Station to business ventures including space tourism -- with stays priced…