... GRO J1655 40: Evidence for a Spinning Black Hole . ... In the center of a swirling whirlpool of hot gas is likely a beast that has never been seen directly: a black hole. ... Young Suns of NGC 7129 . ... While these stars are at a relatively tender age, only a few million years old, it is likely that our own Sun formed in a similar stellar nursery some five billion years ago. ... As a result, two celestial wonders easily visible for southern hemisphere skygazers are known as the Clouds of Magellan. ...