home publications > mercury . ... Fingerprints from Rainbows . ... Their "suspects" and "witnesses" are the points of light in the sky that we call the stars. ... Comte held that there were limits to what we could know, limits set principally by the constraints on how much information we could gather. He thought that the chemical composition of the stars was a prime example of "unobtainable knowledge" because the stars were so distant that we could never get samples of their material to examine. ...

... Tonight's Sky . ... Sky this Month . ... The Sky This Week: April 1 - 10 . ... Sky this Week . ... Rover's first soil studies help fingerprint martian minerals . ... This graphic shows results of the first analysis of martian soil by the Chemistry and Mineralogy (CheMin) experiment on NASA's Curiosity rover. ... The minerals were identified in the first sample of martian soil ingested recently by the rover. ... Only registered members of Astronomy.com are allowed to comment on this article. ...

... Naming technique {a,c,e,f} = {a,b,c,d,e,f,g,h} log || +1 a b c d e f g h {a,c,e,f,g} Names = {[1],[2],[3],[4],[5],[6],[7],[8],[9],[10]} {a,c,e,g} Fingerprints ={[7],[9],[10]} Amir, Apostolico, Landau, Satta 2003 k distinct characters Changing a character: O( log || log n) (n new names maximum by level) One iteration: n log || log n || iterations: || n log || log n Important: different set of ... Approximate fingerprint Distance by fingerprints 2D fingerprints ...

is split into spectral colours, corresponding to wavelength. Red light has long wavelengths, blue light has short wavelengths. from hot objects are continuous , like a rainbow . atoms only emit light of specific colours, revealing their fingerprints as a line spectrum . atoms in front of a hot object absorb light at these colours, giving an absorption spectrum . are predominantly absorption spectra . next

... Science User Portal . ... Star Clusters . ... Using ESO's Very Large Telescope, an international team of astronomers has shown how to use the chemical composition of stars in clusters to shed light on the formation of our Milky Way. ... This paves the way to chemically tagging stars in our Galaxy to common formation sites and thus unravelling the history of the Milky Way, " she adds. ... Once the "DNA" of each star cluster is inferred, it will be possible to trace the genealogic tree of the Milky...

Below is my PGP public key, which is currently signed by Steve Romig (as well as by me). If you already know and trust Steve, and have his public key, then you can take the key directly from this page, and check his signature, and you will then know you really have my valid public key. ... If you don't know how to get a fingerprint from a PGP public key, please read the manuals that came with PGP. ... So if you don't know Steve and don't have his public key, you can't trust my signature alone. ...

... E-mail: . ... 7(878)22-93331, +7(878)22-93449, +7 87878-46298 (fax) . ... The References to my research on Automatic Data Acquisition Systems of the RATAN-600 . ... I made the first version of HTML and the E-mail access to CATS Data Base for selection of Radio Sources; And the E-mail access to SED Data Base for Information System "Evolution of Radio Galaxies" . Project RBFR 01-07-90164: "The Science-Educations Network build in Karachaj-Cherkessia -- Stavropol region." ...

... ATNF Colloquium . The importance of the Earth's atmosphere propagation medium effects on radio astronomical observations . ... These propagation effects are manifested in very distinct fashion depending on the observing frequency. ... In this talk I will present a variety of methods to mitigate the effects of the atmosphere in radio astronomical observations. Furthermore I will address the applicability to various fields of science. ... today * ATNF | ...

Hubble Finds Ozone on Jupiter's Moon Ganymede . Courtesy of the Space Telescope Science Institute . ... Hubble found ozone's spectral fingerprint during observations of Ganymede made by Keith Noll and colleagues at the Space Telescope Science Institute, Baltimore, Maryland. ... CONTACT: Ray Villard FOR RELEASE: October 10, 1995 Space Telescope Science Institute (Phone: 410-338-4514) Keith Noll Space Telescope Science Institute, Baltimore, MD (Phone: 410-338-1828) PRESS RELEASE NO.: ... Ganymede . ...

... How to Spot a Pale Blue Dot in the Night Sky - Signatures of Life on Extrasolar Planets . ... Frame 2: Steamy atmosphere, an ocean is covering the entire planet, no oxygen is present, timeline about four billion years ago. ... Using such telescopes as Kepler, James Webb Space Telescope (JWST), Darwin and Terrestrial Planet Finder (TPF), and masking the star light, the light from small Earth-like planets can be collected and analyzed. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... Energy Levels . ... Radiation from . Hot Objects . ... Instead he wanted to explain the continuous spectrum emitted by hot solids--also known as " black body spectrum " because it is supposedly emitted by an ideal hot object ("black body") whose structure gives no special preference to any color (as happens with green grass, blue jeans and red bricks). ... A "black body spectrum" is also expected in light from hot dense gases, where strong energy exchange exists among frequently colliding atoms. ...