Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . ... Alien Life . ... Astronomers in the 1800s used telescopes to search for signs of life and even civilization elsewhere in the Solar System. Some even believed they saw signs of intelligent life on Mars in the form of a grid of canals across the Red PlanetтАЩs surface. ... No one seriously expects there to be intelligent life elsewhere in our Solar System, to find talking and technological folk we have to look beyond. ...

... Tonight's Sky . ... Astronomy for Kids . ... Car-sized rover nears daring landing on Mars . The Mars Science Laboratory mission is a precursor for future human missions to Mars. ... During the initial weeks after the actual landing, JPL mission controllers will put the rover through a series of checkouts and activities to characterize its performance on Mars while gradually ramping up scientific investigations. ... Only registered members of Astronomy.com are allowed to comment on this article. ...

... http://www.cfa.harvard.edu/~agoodman/ . ... Alyssa Goodman is Professor of Astronomy at Harvard University, and a Research Associate of the Smithsonian Institution. Goodman and her research group at the Harvard-Smithsonian Center for Astrophysics in Cambridge, MA study the dense gas between the stars. ... Presently, she is working closely with colleagues at Microsoft Research, helping to expand the use of the WorldWide Telescope program. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

TPOINT a telescope pointing analysis system Version 18.20, for Unix 10th December 2011 Published by: Tpoint Software www.tpsoft.demon.co.uk TPOINT is a trade mark. Information in this document is sub ject to change without notice. c Copyright 2011 P. T. Wallace. All Rights Reserved. Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws. CONTENTS iii Contents Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

... In space, therefore, we should choose technologies carefully. ... For instance, the solar-photon sail--pushed through space by linear-momentum transfer from reflected solar photons--could carry water mined on comets or hydrated asteroids towards human habitats in dry solar systems. ... Article Highlights New Type Of Astronomy ,,Clubs: Online Amateur astronomers "are beginning to look very different from what they did only a few years ago," an article in last months Sky & Telescope observed. ...

... 000, 1­13 (2010) Printed 21 September 2011 A (MN L TEX style file v2.2) A universal ultraviolet-optical colour­colour­magnitude relation of galaxies I1gor V. Chilingarian1,2, and Ivan Yu. ... Received 2011 Sep 15; in original form 2011 Feb 6 ABSTRACT The bimodal galaxy distribution in the optical colour­magnitude diagram (CMD) comprises a narrow "red sequence" populated mostly by early-type galaxies and a broad "blue cloud" dominated by star-forming systems. ...