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Astronomers detect the closest example yet of a black hole devouring a star（图）
黑洞 吞噬恒星 红外天文学
2023/6/9
Once every 10,000 years or so, the center of a galaxy lights up as its supermassive black hole rips apart a passing star. This “tidal disruption event” happens in a literal flash, as the central black...
Scientists find closest known asteroid to fly by Earth（图）
Scientists closest known asteroid fly by Earth
2020/8/27
On August 16, 2020, the Zwicky Transient Facility, a robotic survey camera located at the Palomar Observatory near San Diego, spotted an asteroid that had, just hours earlier, traveled only 1,830...
Called SN 2014J, the glowing supernova was discovered by a professor and his students in the United Kingdom on Jan. 21, about a week after the stellar explosion first became visible as a pinprick of l...
More Efficient Algorithms for Closest String and Substring Problems
More Efficient Algorithms Closest Strings Substring Problems
2012/11/30
The closest string and substring problems find applications in PCR primer design, genetic probe design, motif finding, and antisense drug design. For their importance, the two problems have been exten...
At Closest Approach, New Horizons Takes Fresh Look at Jovian System（图）
Horizons spacecraft solar system
2007/3/6
27 February, 2007，To make the most of the fly-by opportunity, the New Horizons team came up with a plan for no less than 700 separate observations stretching from early January to March. This is actua...