"In fact, they are the heroes right now," Yi said, referring to Malenchenko and Whitson. "I'm just a beginner and a little ashamed to say that I am a hero."

　　She did, though, relate a more light-hearted incident on the ISS.

　　"I sang 'Fly Me to the Moon" Yi said about the 1950s pop song. "It's my favorite song from university although at that time I didn't know I would be an astronaut."

　　The capsule's so-called "ballistic" re-entering made the group members face twice the usual pull from the centre of the earth.

　　The flames Yi described may have been caused by friction (摩擦) heating the capsule as it fell through the atmosphere.

　　Whitson told reporters that Saturday's ballistic landing, was irregular but not an emergency.

　　"The Soyuz has been through its history very reliable and there has obviously been some issue in the last couple of descents which went ballistic, but I'm sure the engineers will determine what the problems are and get them fixed," she said.

　　In October, a Soyuz capsule carrying Malaysia's first space tourist touched down about 200 km (125 miles) off course in a similar ballistic landing caused by a technical problem.

　　The Soyuz is the world's longest-serving manned space capsule.

　　An early version of the craft, the Vostok, carried the first person into space in 1961.

　　Whitson, 48, has become the American with the longest amount of time in space with 377 days.

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