The latest theory offers hope that scientists one day may identify the history of what a black hole has taken in over the eons - by decoding what it emits.

• 最新的理论让我们看到了希望：有朝一日，科学家们也许能够通过解析黑洞释放出的信息来确定黑洞长久以来的“吞噬史”。