摘要
<正>Have you ever thought about what the sun sounds like? Scientists from the European Space Agency and NASA studied 20 years of data to try to listen to the sun. They say the sun pnxluces a sound like a low, deep "heartbeat".你曾经想过太阳的声音是怎么样的吗?欧洲航天局和美国国家航空航天局的科学家们