... 2006 June 24 . Nix and Hydra . Image Credit: M. Mutchler ( STScI ), A. Stern ( SwRI ), and the HST Pluto Companion Search Team , ESA , NASA . Explanation: Discovered in mid-2005, Pluto's small moons were provisionally designated S/2005 P1 and S/2005 P2. ... Compared to Pluto and its large moon Charon, at 2,360 and 1,210 kilometers in diameter respectively, Nix (inner moon) and Hydra (outer moon) are tiny, estimated to be only 40 to 160 kilometers across. ... About APOD | ...

... Credit Copyright: Greg Bacon ( STScI ), NASA Explanation: The last decade saw the profound discovery of many worlds beyond our solar system, but none analogs of our home planet Earth . ... Less massive planets must certainly exist, and yesterday preeminent planet-finders announced the further detection of two more new worlds -- each a potentially smaller, saturn-sized planet. ... Publications with keywords: extrasolar planet - planet - Saturn - planetary system . ... In the Shadow of Saturns Rings ....

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 . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... In the late 1970s, jets were discovered in megaparsec-long radio galaxies. ... This involved the first quantitative analysis of jet warping, bending and disruption in galactic halos. ... Hot spots are created where a jet finally crashes into the surrounding medium. ... I extended the so-called Twin Exhaust Model, using numerical simulations to show that hot gas can be ejected in three forms: jets, bubbles and clouds. ...

We have reviewed the characteristics of the extended red emission (ERE) as observed in many dusty astronomical environments, in particular, the diffuse interstellar medium of the Galaxy. ... We have compared the photoluminescence properties of a variety of carbon- and silicon-based materials proposed as sources for the ERE with the observationally established constraints. We found that silicon nanoparticles provide the best match to the spectrum and to the efficiency requirement of the ERE. ...

... 2000 December 15 . IC443's Neutron Star . ... Explanation: Using x-ray data from the orbiting Chandra Observatory along with radio data from the Very Large Array , a team of researchers has discovered evidence for a new example of one of the most bizarre objects known to modern astrophysics -- a neutron star . ... The core collapsed when the star, located a reassuring 5,000 light-years away in the constellation Gemini , exploded long ago. How long ago? ... About APOD | ... NASA Technical Rep.: ...

... Information about a variety of different calendars for different cultures (e.g., Christian, Jewish, Muslim, Chinese, Hindu etc.) ... In addition, the Chinese had two different ways of interpreting and observing celestial events. One way the Chinese used astronomy was known as lifa; it was a discipline that aimed to understand the regularities and the predictable events in the celestial system through careful, observations, measurements and records. ... back to Teachers' Newsletter Main Page ...

. Go Here for Hubble Ultra Deep Field . ___________________________________________________________________ The Electronic Universe Project e-mail: nuts@moo.uoregon.edu

A team of U.S. and German astrophysicists have made the first ever detection of X-rays coming from a comet. ... Following the initial detection, the team reported repeated X-ray emissions from the comet over the next 24 hours. ... One preliminary theory is that X-ray emission from the Sun was absorbed by a cloud of gaseous water molecules surrounding the nucleus of the comet, and then were re-emitted by the molecules in a process physicists call "fluorescence." ... Comets . ...

Aristarch is Copernic of Classic World. ... First Aristarch determined the fact for how many times the Sun was father then the Moon and then he compared the Sun and the Moon with the Earth. ... Only the Moon rotates around the Earth. ... Gipparch suggested that the Sun turned around the Earth steady and in circumference but the Earth is displaced according its centre. ... The orbit point in which the Sun is nearer to the Earth Gipparch called perigee and the most remote one he called apogee . ...

APO and Diffuse Interstellar Bands 19822014 Donald G. York University of Chicago APO 20th (30th ?) reunion May 12, 2014 What are Diffuse Interstellar Bands? · 570 interstellar lines between 4000A and 8500A (more to the red, developed by SDSS III IR spectrograph). ... January 7, 1999, first DIB spectra taken, 15 Mon and rho Leo. ... Two stories: a unique star in a nebula And the recent Supernova 2014J in M82 Herschel 36 in NGC 6530 Herschel 36 in NGC 6530, Dumbell Nebula, 33 APO spectra over 13 years. ...

A star has recently been discovered travelling in a circular orbit around our galaxy (the Milky Way). ItтАЩs orbit is 80 kilo-parsecs out, and it is traveling at a speed of 320 km/s. Deduce the mass of our galaxy from this. Compare your answer to the mass of everything we can see in our galaxy (1.2x10 42 kg). A kilo-parsec is 1000 parsecs, and a parsec is 3.1x10 16 m. Click here to download the webcast (8 minutes, 11 MB, m4v format, can be viewed with Quicktime, iTunes or iPods)

. So far, the Kepler spacecraft has discovered four habitable-zone planets, as illustrated here with their relative sizes compared to Earth: (from left) Kepler-22b, Kepler-69c, Kepler-62e, Kepler-62f, and Earth. // NASA Ames/JPL-Caltech

We have discovered a very radio loud narrow-line Seyfert 1 candidate: PKS 2004-447. This Seyfert is consistent with the formal definition for NLS1s, although it does not have quite the same spectral features as some typical members of this subclass. ... A full comparison of this source with other members of the subclass will improve our physical understanding of NLS1's. In addition, using standard calculations, we estimate the central black hole to have a mass of 5 10 6 M solar ;. ... Australia . ...

... SN1998bw was discovered by Galama et al. in the BeppoSAX WFC error box of GRB 980425, by comparing two frames taken at the ESO-NTT telescope on Apr. 28.4 and May 1.3 UT, close to a spiral arm of the barred galaxy ESO 184-G82. ... A few days after its detection, the object was classified as a SN of type Ib and later as a peculiar Ic, due to a complete absence of H lines, no clear HeI detection and the weakness of the SiII 6355A, which is the characterizing feature of type Ia. ...

... Luminous blue variable (LBV) stars are the most massive stars with 40-120 solar masses, which are passing the short stage of evolution losing their hydrogen envelopes before exploding as Supernovae. These are extremely rare objects, only about a dozen of the most massive LBVs are known in the Galaxy. ... In the spectral observations of stars with infrared circular nebulae, found in the Spitzer survey (24 microns), a new LBV star in the Galaxy was discovered. It was named MN112. ...

... Planets . ... Stars . Exoplanets . ... Most exoplanets so far discovered fall into the category of тАШhot JupitersтАЩ, these are giant planets orbiting very close to their parent star. ... Note that we have discovered so many hot Jupiters because they are the easiest type of planet to find, they are not necessarily particularly common in the galaxy. ... Subsequently several similar hot and€а fuzzy worlds have been discovered the same way, proving this that this planet is not a one-off oddball. ...

Next: Endlessly Complicated World Up: No Title Previous: Tsiolkovskii's Paradox . ... Really, we have consisely expresed a materialistic, atheistic, scientific point of view and have discovered God, the scientifically supported God. ... Equally, we cannot admit an infinite complication of the world and its successful cognizability (i.e. the existence of a mind in an infinitely complicated world) without admission of Superintelligence -- the scientifically discovered God . ...

... Scientists from G. I. Budker Institute of Nuclear Physics- Syberian Branch of the Russian Academy of Science, Novosibirsk State University, Novosibirsk State Technical University, Samara State Aerospace University (SSAU) and Image Processing Systems Institute (IPSI) of the Russian Academy of Science, became the first people in the world obtained terahertz non-diffractive twisted Bessel beams and used them for the first time the formation of surface electromagnetic waves on the metal surface. ...

... Meta Index / Home Page / Some functions for testing/debugging . This function returns .true. if the given pair of values agree with each other in the given precision (order), or .false. otherwise. LOGICAL(bool) FUNCTION isNearlyEqual(cmp, compared, precision) REAL, intent(in) :: cmp, compared ! or INTEGER INTEGER, intent(in) :: precision END FUNCTION isNearlyEqual . For the pair of the first two arguments, any combination of int8 , int16 , int32 , single and double is allowed. ...