... GOODS unites extremely deep observations from NASA's Great Observatories, Spitzer , Hubble , and Chandra , ESA's Herschel and XMM-Newton , and from the most powerful ground-based facilities, to survey the distant universe to the faintest flux limits across the electromagnetic spectrum. ... The space-based observations are complemented by ground-based imaging and spectroscopy, including extensive commitments of ESO and NOAO observing time. ... 2010-04-10: Deep VLA 1.4 GHz data for GOODS-North . ...

... Credit Copyright: Carlo Dellarole, Andrea Demarchi Explanation: On Monday, January 26, well-tracked asteroid 2004 BL86 made its closest approach, a mere 1.2 million kilometers from our fair planet. ... The remarkably pretty field of view includes M44, also known as the Beehive or Praesepe star cluster in Cancer. Of course, its close encounter with M44 is only an apparent one, with the cluster nearly along the same line-of-sight to the near-earth asteroid. ... Publications with keywords: asteroid . ...

... NASA survey counts potentially hazardous asteroids . ... New results from NASA's NEOWISE survey find that more potentially hazardous asteroids (PHAs) are closely aligned with the plane of our solar system than previous models suggested. ... Observations from NASA's Wide-field Infrared Survey Explorer (WISE) have led to the best assessment yet of our solar system's population of potentially hazardous asteroids. ... Only registered members of Astronomy.com are allowed to comment on this article. ...

... Perhaps the most interesting satellites in this group are the ones sent into distant orbits, some of them extending well past the Moon--e.g. the WIND spacecraft pictured here. Among them is a long series of IMP s (Interplanetary Monitoring Platforms) which sampled the Earth's distant magnetic environment, the magnetosphere, and the surrounding interplanetary region; IMP-8 is still returning good data, more than 20 years after its launch. ...

... 2015 April 18 . The Great Crater Hokusai . Image Credit: NASA , Johns Hopkins Univ. ... Explanation: One of the largest young craters on Mercury, 114 kilometer (71 mile) diameter Hokusai crater's bright rays are known to extend across much of the planet . But this mosaic of oblique views focuses on Hokusai close up, its sunlit central peaks , terraced crater walls , and frozen sea of impact melt on the crater's floor . The images were captured by the MESSENGER spacecraft. ...

Voyager 2 narrow angle image of Neptune taken from 7.2 million km about 5 days before closest approach. This green filter exposure shows a number of atmospheric features on Neptune, including the Great Dark Spot at center. ... Central Latitude/Longitude (deg): N/A . ... Instrument: Wide-angle Vidicon camera . ... NASA Image ID number: FDS 11243.47 . ... Code 633, NASA Goddard Space Flight Center . Greenbelt, MD 20771, USA . ... Code 630, NASA Goddard Space Flight Center . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Comets and Asteroids . ... Space Flight . ... Science Fiction . UFOs and Fringe Science . ... This close-up look at Comet ISON (C/2012 S1) is from NASAтАЩs Hubble Space Telescope. This image was captured on 10 April 2013, when the comet was at a distance of 386 million miles (slightly further than Jupiter) from the Sun. ... Image credit: NASA, ESA, J.-Y. Li (Planetary Science Institute), and the Hubble Comet ISON Imaging Science Team) . ...

Astronomers Jonathan Horner and Wyn Evans , at the Universities of Oxford and Cambridge, and Mark Bailey and David Asher , at the Armagh Observatory, have provided new insight into the links between comets and asteroids in the outer solar system and their dynamical evolution. These bodies, many of which have diameters greater than 100 km, are called "Centaurs" because of their "half-comet, half-asteroid" status. ... In either case, the Centaurs give clues to the origin of the planetary system. ...

... What's New? Bad Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... On August 27, 2003, at 9:51 Universal (Greenwich) Time, Mars will be making its closest approach to Earth for quite some time. ... A lot of astronomers and news media are saying about how close it will be and how big it will look, but they are leaving out two crucial facts: Mars will be nearly 56 million kilometers away, and it's only fractionally closer than the last favorable pass. ...

The Arecibo Observatory-- at nearly 1000' across--is the world's largest radio and radar telescope. Located in northwestern Puerto Rico, the original facility was built 40+ years ago, but it underwent major upgrades in the 1970s and in 1997-99. ... The observatory operates with a staff of about 125 and a yearly budget of about $12M, 5/6ths of which comes from NSF-astronomy and most of the remainder from NSF-atmospheres. ... This will extend the telescope's life by 20-30 years. ...

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... Energy . ... Solar Wind . ... Field . ... The Sun is our nearest star and the source of energy for life on Earth. ... For centuries astronomers wondered whether they were clouds floating in the Sun's atmosphere, but we now know that they really are huge regions of magnetic field, about as intense as the field at the poles of an iron magnet. For some reason the field slows down the flow of heat from the Sun's interior and keeps sunspots slightly cooler than their surroundings. ... Solar Eclipses . ...

... A radio galaxy is a galaxy that emits an unusually big amount of energy at radio wavelengths. ... Inside of each galaxy with an active nucleus (radio galaxies are among them) there must be a system of a "central machine" responsible for the colossal amount of the emitted energy from radio to gamma ranges. ... Sometimes a radio source in an active galaxy may flare again if the needed conditions appear (a new portion of matter would fall into the furnace of the "central machine"). ...

... history, facts, technology, space ships . Posted by Askar under Introduction . Огромный вклад в развитие теории космонавтики внес М.В. Келдыш, который в течение многих лет руководил важнейшими космическими исследованиями. ... Comments are closed. Introduction . Russian Astronauts . Russian Launch Centers . ... Russian Research Ships . ... Russian Space Probes . Russian Space Ships . Russian Space Stations . ... Both comments and pings are currently closed. Space - ru . ...

... Tidal influence on each of the galaxies in our sample is quantified by identifying and measuring the distance to the nearest companion, using a photometric technique with good completeness characteristics. ... Massnormalised starformation rates were derived using galaxy stellar masses estimated from zband luminosities Nearest companions were identified using the algorithm illustrated in Figure 1. ... Some of the lowredshift galaxies in our sample with close companions are illustrated in Figure 3. ...

The small solids. Asteroids or the small planetes . ... The comets. ... Ceneca the Young.Procuring about the nature.63 y. The comet is a celestial body of a great size, but a rare one... transparent. Sometimes there seen a core and the medium forms a kind of a tail, beard or dishevelled looks. ... The core is an ice body - conglomeration of frosted gas and dust. ... The comet state is variable: ones have the con tails, others the dust tails, and the third have both. ... Meteors and meteorites. ...

... The International Cometary Explorer ( ICE ) spacecraft has now had a close encounter of the best kind (the real kind) with Comet Giacobini-Zinner and has returned a host of useful scientific information. ... While Halley's Comet is too close to the Sun for observation, we can turn our attention to the Voyager 2 spacecraft's closest encounter with the planet Uranus. ... Planet A spacecraft (Japan) has its closest fly-by of Halley's Comet; distance = 100,000 to 200,000 km (60,000 to 120,000 mi) . ...

... He was so very nice He was so very kind To think of me at this point in time I used to think of him He used to think of me He told me to close my eyes My gift would be a great surprise I saw tears were in his eyes He never meant to hurt me Oh, God, Johnny, don't point that gun at me There's so many ways our lives have changed But please, I beg, don't do this to me Johnny, don't point that gun at me Can I save my life for any price? ... Oh Johnny, won't you listen to me? ...

As the Universe expands, gravity pulls on the Universe, and slows the expansion down over time. As we look to great distances, we are looking back in time. If we can measure how fast the Universe is expanding in the past, and compare it to how fast it is expanding now, we can see the total gravitational effect of all matter in the Universe. Here we plot the distance between two galaxies as a function of time. ... Universes with lots of material . ...

Mal Ruderman (KIPAC, Stanford) . What do we see when we look at the surface of a neutron star from a great distance? ... The new point that is made is a consequence of near-relativistic electron-positron flows expected in the near-magnetosphere's of "young" (not older than about a million years) neutron stars. Because of cyclotron resonance scattering by these pair-flows on surface X-ray and UV emission, we do not see unprocessed suface emission. ...