終極新星 (hypernova)
Astronomers have observed the remnants of a 'hypernova' (a hundred times more energetic than a supernova) which is a potential candidate as the source of the myterious gamma ray bursts: http://exosci.com/news/150.html
中量級黑洞 (middleweight blackholes)
Astonomers have also observed, for the first time, 'middleweight' black holes which are in between in size (around 100 to 10 000 times heavier than our sun) the lightweights and heavyweights: http://exosci.com/news/151.html
反物質與核融合推進器 (antimatter and fusion propulsion)
NASA has posted an interesting article on future spaceflight technologies, namely antimatter and fusion propulsion. Very interesting stuff: http://science.nasa.gov/newhome/headlines/prop12apr99_1.htm