... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2009 September 8 . Unexpected Impact on Jupiter . ... Explanation: Two months ago, something unexpected hit Jupiter. First discovered by an amateur astronomer Anthony Wesley on 2009 July 19, the impact was quickly confirmed and even imaged by the Hubble Space Telescope during the next week. ... About APOD | ...

Astronomy Picture of the Day . Unexpected Impact on Jupiter . ... 8.09.2009 . ... First discovered by an amateur astronomer Anthony Wesley on 2009 July 19, the impact was quickly confirmed and even imaged by the Hubble Space Telescope the very next day. ... It is now thought that a small comet -- perhaps less than one kilometer across -- impacted Jupiter on or before 2009 July 19. ... July . ... Publications with keywords: Jupiter - impact . Publications with words: Jupiter - impact . ...

... December 30, 1998 . Supernova 1994D and the Unexpected Universe . Credit: High-Z Supernova Search Team , HST , NASA . Explanation: Far away, long ago, a star exploded. ... Supernova 1994D was not of interest for how different it was, but rather for how similar it was to other supernovae . ... The large number and great distances to supernovae measured in 1998 have been interpreted as indicating that we live in a previously unexpected universe . ... About APOD > . ... NASA Technical Rep.: ...

... This is a personal project collecting and documenting early images of Harvard College Observatory, focusing on the site at Observatory Hill (previously Summer House Hill). ... Earliest source: "[Observatory women computers], 1891." ... A group photo of computers at Harvard together with Mary Anna Palmer Draper, aka Mrs. Henry Draper. ... 1891 . General: The women depicted in this photograph analyized stellar photographs and computed data at the Harvard College Observatory. [link] 1891 . ...

... Central to this vision has been the idea that the way to discover new worlds around distant stars is by someday traveling there in person. ... I am a graduate student in astrophysics at UC Berkeley, home of one of the most successful planet searches presently underway. ... We can see the planets in our own solar system by reflected sunlight, but only at night when the sun?s glare does not obscure them. ... Planets are thought to form from a disk of gas and dust swirling around an infant star. ...

... Planets . ... Earth Satellites . ... The newly discovered ?mega-Earth? ... Its sibling, the lava world Kepler-10b, is in the background (the two planets? proximity is grossly exaggerated) .€а Kepler-10c has a diameter of about 29 000 km, 2.3 times as large as Earth, and weighs 17 times as much. ... The first mega-earth to be discovered is Kepler-10c which orbits a star lying about 560 light years from the Sun in the constellation Draco. ... Astronomers Find a New Type of Planet: The ?Mega-Earth? ...

... Predicting the 1999 Leonid Storm : David Asher also explained previous Leonid meteor storms (notably the great storms of 1833 and 1966), and together with Rob McNaught (Australian National University, Siding Spring Observatory) made accurate predictions for the times of the `normal' storm trails of the Leonids. The prediction for the 1999 storm (for November 18 02 08 ) turned out to be `spot-on', and made headlines around the world. ...

... EXPN DNO D A T E UT TIME FQ SOURCE CORR-Telescopes VT734 355-MO Dec 21 08:00-21:00 C TAU-A Pointing VT735 356-TU Dec 22 08:00-21:00 C TAU-A Pointing VT736 358-TH Dec 24 09:00-20:00 K ORIONKL Pointing VT737 359-FR Dec 25 09:00-20:00 K ORIONKL Pointing VT738 360-SA Dec 26 09:00-20:00 C 0528+134 Mitk-UD KA SH W018c 364-WE Dec 30 06:00-15:00 L 0552+398 Socr-VLBA W071n 6-WE Jan 06 10:00-17:00 L J0745+10 Mitk-AT HO MP UD SH KA W059e 7-TH ...

Estimating the NEO Population and Impact Risk: Past, Present and Future . ... Since most of the risk resides in the largest impactors, finding that fraction of the largest bodies, and that none of them has a significant chance of impacting in the next century or so, "retires" more than 90 % of the impact risk, including most of the risk of a globally catastrophic impact event. ... In the mid-size range, from ~150 m to ~1 km, the main risk is from tsunami generated by an ocean impact. ...

... Green ESO . ... Observations made using the HARPS spectrograph at ESOтАЩs La Silla Observatory in Chile have revealed unexpected changes in the bright spots on the dwarf planet Ceres. Although Ceres appears as little more than a point of light from the Earth, very careful study of its light shows not only the changes expected as Ceres rotates, but also that the spots brighten during the day and also show other variations. ... ArtistтАЩs view of bright spots on Ceres imaged by the Dawn spacecraft . ...

Next session of a regularly functioning workshop "Computer Networks: Problems Solutions" is expected to be held on Tuesday, June 18, 1996 . Nikolay Isakiv nisa@novell.msk.ru . " Recommended Solutions for Educational Organizations from NOVELL " . Agenda of the Next Session . Agenda of the Previous Session . Return to CONPAS homepage . 

. Computer Ephemeris. Mesting A crater ephemeris. Explanations. This page is still under construction.

Supernova 2009js in NGC 918 . This page is devoted to information on Supernova 2009js in NGC 918 . Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main page . Information on the original web pages for many of these images can be found on the updates and links web pages. Discovered independently by Lick Observatory Supernova Search (USA) and Koichi Itagaki (Japan). ... 2009/10/11.44 . 17.2 . ... Joseph Brimacombe . ...

... Ceresт?? bright spots show unexpected changes . ... CERES | ... Observations made using the HARPS spectrograph at the European Southern Observatory s (ESO) La Silla Observatory in Chile have revealed unexpected changes in the bright spots on the dwarf planet Ceres. Although Ceres appears as little more than a point of light from Earth, careful study of its light shows not only the changes expected as Ceres rotates, but also that the spots brighten during the day and also show other variations. ...

... I.A.Dynnikov, Three-page approach to knot theory. ... Universal semigroup, Funktsional'nyi Analiz I Prilozhenija, 34 (2000), no.1, 29-40 (Russian); English translation in Functional Analysis and Its Appl. 34 (2000), no.1, 24-32. I.A.Dynnikov, Finitely presented groups and semigroups in knot theory. ... Math. 2000, no. ... English translation: Russian Math. ... A.Vershik, Numerical invariants of exponential groups, and a locally free approximation of braid groups (in Russian), Zapiski Nauchn. ...

Target: Venus . The Soviet VEGA Spacecraft Two remarkable "busloads" of automated spacecraft were launched toward Venus by the Soviet Union in December of 1984. Each one contains three separate modules: one lander and one balloon-carried atmosphere probe to be dropped off at Venus in June, 1985, and one major package of instruments which will continue on to encounter Halley's Comet in March, 1986. ... Venus and Earth: A Comparison . Earth . ... in Earth days) . ... 243 Earth days . ...

... The top quark, discovered at the Tevatron in 1995 and not long ago re-discovered at the LHC, is strongly coupled to the Higgs sector and therefore expected to be related to electroweak symmetry breaking. ... I will talk about the basics of jet substructure analysis, our top tagging approach and several applications for top physics, especially stop searches and the potential of the ttbar forward-backward asymmetry measurement at the LHC. 4:00pm, 472 Willamette Hall . ... return to top . ...

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... History . Brief History of Rocket and Space Technology . ... Flights Chronology . ... ISS Russian Segment . ... Identification of objective features of typological manifestations of operator activity, which can be used for assessment of the actual mental state, prediction and correction of quality of professional task performance in a space flight. ... 2015 JSC "S.P. Korolev RSC "Energia" . ...

... Over the first 4 years, its X-ray telescopes eROSITA and ART-XC will survey the whole sky with a record sensitivity in the 0.5-10 keV energy band. ... The goal of the second international Spectrum-RG conference is to discuss the different scientific topics addressed by the mission, synergies with surveys at other wavelengths, and requirements to follow-up observations.Contributed talks and poster presentations are invited on the topics related to the SRG science goals. ... Active galactic nuclei . ...

Proposal Identification No.: ... For these observations night-time is not needed. ... Section V - Observing List Target List RRAT J1849+01 18:49: 00.0 10:00: 00.0 17:35:59 20:03:22 PSR J1850+02 18:50: 00.0 2:00: 00.0 18:05:52 19:35:33 3 PSR J1854+00 18:54: 00.0 0:00: 00.0 18:25:30 19:23:57 PSR J1902+02 19:02: 00.0 2:00: 00.0 18:17:51 19:47:35 RRAT J1912+0829 19:12: 00.0 8:29: 00.0 18:02:26 20:22:55 RRAT J1914+0625 19:14: 00.0 6:25: 00.0 18:10:20 20:19:02 ...