... Astronomy index . ... This tour, of the world of astronomy, physics and spaceflight, may just as well end with a light-hearted 1878 poem by the Czech poet Jan Neruda . ... Do Frogs Exist there Too ?" . ... Like moles they dig for learning. ... They call one foot, that's all. ... Do frogs exist there too?" ... star? jim ?ab?k u?en? . ... teprv jim loket jeden. ... Foot" as used here, in Czech "loket," actually means "cubit," the distance from elbow to stretched fingertips, about a foot and a half. ...

... NASA's Hubble Space Telescope has detected a long-sought population of comets dwelling at the icy fringe of the solar system . The observation, which is the astronomical equivalent to finding the proverbial needle-in-a-haystack, bolsters proof for a primordial comet reservoir just beyond Neptune , currently the farthest planet from the Sun . ... The comet-disk lies just beyond Neptune and might stretch 500 times farther from the Sun than Earth . ... Comet Introduction Kuiper Belt Objects . ...

RXTE: 01.03.02 - , 2006 2 . 28 2006 . ... 2001), " : " (, , 2003), " " (, 2003,2005), " " (, , 2005), " " ( , , 2005), " " (, , 2006), " " (, 2006), " X-2 +/-1" (, , 2005), 36- COSPAR (, 2006), 11 , (), (), (), , (). ... X-1 (.) ... Revnivtsev ., Gilfanov M., Boundary layer emission and Z-track in the color-color diagram of luminous LMXBs, Astron.Astroph., ... Revnivtsev M., Sazonov S., Gilfanov M., Churazov E., Sunyaev R., Origin of the Galactic ridge X-ray emission, Astron.Astroph., ...