4．What do you do when nobody is around to take your picture？You take a selfie （拍照） .But what about selfies in space？On Twitter last year，NASA astronaut Edwin "Buzz" Aldrin，who famously became the second man to walk on the moon in July 1969，laid claim to a spaceflight first taking the first selfie in space during the Gemini XII mission in 1966.
"For me，it needs to be digital to be selfie，" argues Jennifer Levasseur，who is in charge of the Smithsonian National Air and Space Museum.According to Levasseur，the concept of a selfie is directly linked to Internet culture and human desire to interact on social platforms. "The thing that makes a selfie is sharing it，" she says.
Still，astronauts have been carrying cameras abroad space vehicles since the 1960s ，and they've taken plenty of pictures of themselves along the way.Astronauts had to pull the film magazines out and leave their cameras behind when they returned to Earth because early space missions were restricted by a conservative weight limit on the return trip.
A big change in space camera technology came after sad loss of the space shuttle Columbia who broke apart on its return to Earth in 2003. "Fearing that they would never be able to bring the film back from space and lose all that hard work celebrated the push for digital." Levasseur says.
Today astronauts can have access to the Internet and social platforms in space and post true based selfies taken by digital cameras.Taking selfies and sharing them on social media is a way that astronauts in space can participate in the same activities people on Earth do every day.The first astronaut selfie that went viral（网红的） on the internet was one by Japanese astronaut Akihiko Hoshide in 2012.
（1）What does Levasseur think of Aldrin's claim？
A．It hardly makes any sense.
B．It revolutionizes astronautics.
C．It contradicts public opinions.
D．It needs to be further proved.
（2）Why were cameras left in space on early space missions？
A．To lighten the load of the spaceship.
B．To test cameras under extreme conditions.
C．To prepare for the next stage of space exploration.
D．To take more pictures in space by remote control.
（3）What advanced space camera technology？
A．The invention of new films
B．The fear of falling behind in the space race
C．The concern about the loss of valuable data
D．The popularity of space selfies on social media
（4）What is the best title for the text？
A．The Exploration of Space.
B．The History of Selfies in Space.
C．The Change in Space Camera Technology.
D．The Development in Space Technology.
