Hypothetico-deductive Method of Scientific Investigation

It involves identifying a toughest problem, of a given field, to solve. 

Steps

1. Guess a solution/theory that might solve the problem.
2. List out all the consequences/predictions of one's theory. This step must clarify what one will not accept as a solution, i.e, constraints on potential solutions due to your theory.
3. Compare the actual evidence ( astronomy, genetics, archeology, geology, climates, botanical, etc) with the consequences/predictions of a theory. Recognize that we can never prove anything but we can falsify. 
4. The process continues for the remaining observations/evidences. 

A theory that survive numerous such tests and that explains more observations than any other theory is considered a better theory.  Then comes the criticism (rational criticism is what is meant by criticism) and this leads to further testing of a theory.The theory also leads to new problems of higher complexity and one may start the same cycle, using same methodology, in solving those newer challenging problems. The process is iterative.
 

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NASA's List of Potential NEO that might colloid with earth

http://neo.jpl.nasa.gov/risk/

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Why does the Moon look so huge on the horizon?

1. Is it due to Earth's Atmosphere ?

    No it is not, you can prove by taking photographs of the moon at different elevations from horizon to the zenith and comparing them.

2. Is it an Illusion?

    Yes it is an illusion, illusion of shape. At the horizon due to other close by objects the brain compares it and makes an illusion that the moon is big, but there is no object to compare in the sky and hence brain processes the moon as it is without any illusion. Like many of you might have seen many optical illusion pictures where they give two different shapes and one appears to be smaller but infact both are same if seen separately.. example as blow

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The two circles are the same angular diameter. Yet many people judge the right one to be smaller. The two converging straight lines nearby influence our judgment. If the lines are replaced with solid black areas, the illusion remains.

The two figures are exactly the same size, yet many people judge the upper one to be smaller. But not all persons do. This illusion illustrates how our judgment of shape and size of an object can be influenced by the shapes and sizes of other objects nearby in the field of view.

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Map of Impact Craters on Earth

Various Impact Craters on Earth

http://www.barringercrater.com/education/impact_process/timemap.php

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How to measure width of hair using Laser

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Richard Feynman Playing Bongo's

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Standard model of Particle Physics

Informative Video about Standard Model

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A Physics Joke

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Atoms with Consciousness and Matter with Curiousity

There are the rushing waves...

mountains of molecules,

each stupidly minding its own business...

trillions apart

...yet forming white surf in unison.

Ages on ages...

before any eyes could see...

year after year...

thunderously pounding the shore as now.

For whom, for what?

...on a dead planet

with no life to entertain.

Never at rest...

tortured by energy...

wasted prodigiously by the sun...

poured into space.

A mite makes the sea roar.

Deep in the sea,

all molecules repeat

the patterns of another

till complex new ones are formed.

They make others like themselves...

and a new dance starts.

Growing in size and complexity...

living things,

masses of atoms,

DNA, protein...

dancing a pattern ever more intricate.

Out of the cradle

onto dry land...

here it is standing...

atoms with consciousness

...matter with curiosity.

Stands at the sea...

wonders at wondering... I...

a universe of atoms...

an atom in the universe.

By : Richard P. Feynman

Source: "The Value of Science," address to the National Academy of Sciences (Autumn 1955)

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My Mars Rover Prototype Project

Phase 1

Phase 2 

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My QuadCopter Project

Phase 1 

Phase 2 

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Getting Started With Astrophotography

You need to follow four steps to astrophotography:
1. Focus,
2. Frame,
3. Test Exposures,
4. Start Exposure sequence.

In daylight photography all of these are done automatically for you, by the camera (except framing), but in astrophotography you need to keep the steps distinct.

You may like to see three videos which illustrate the above points in detail:

Part 1 - 

Part 2 - 

Part 3 - 

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My First Astrophotography

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Useful Astronomy Links

Space News Services Abrams Planetarium - Night Sky Notes Astronomical Information and Events Astronomy Today Jonathan's Space Report (weekly) Kennedy Space Center - Integrated Launch Schedule MarsDaily NASA Press Releases NASA Space Science NASA Multimedia PhysLink.com - Physics and Astronomy Science @ NASA Shuttle and Payload Processing Reports Spaceflight Now Space Daily Space News Space Ref Space.com SPACEWARN Bulletin Universe Today Worldwide Launch Schedule Space Missions and Experiments Advanced Composition Explorer (ACE) Project Page The Apollo Program The Apollo 11 Program Aqua Satellite Ariel V Satellite Astro-E2 Mission Atmospheric Infrared Sounder (AIRS) Aura (EOS) BATSE - Burst And Transient Source Experiment BeppoSAX Cassini-Huygens Mission to Saturn & Titan CHANDRA X-Ray Observatory COBE Satellite - Cosmic Background Explorer Constellation-X CONTOUR Mission Dawn Deep Extragalactic Evolutionary Probe (DEEP) Deep Space 1 Deep Space 2 Dynamics Explorer (DE-1) Plasma Wave Instrument (PWI) Earth Observing System (EOS) ERNE Sensor Unit (ESU) ESA Astrophysics Division - Missions ESO Imaging Survey Project Fast Auroral Snapshot Explorer (FAST) FUSE - Far Ultraviolet Spectroscopic Explorer Galaxy Evolution Explorer (GALEX) Galileo Project Geospace Environment Modeling (GEM) Geostationary Satellite Server (GOES) Geotail GOODS: The Great Observatories Origins Deep Survey Giotto GLAST Mission - Gamma Ray Large Area Space Telescope Hawkeye Spacecraft (Explorer 52) HEAO-1 Satellite HEAO-2: The Einstein Observatory HEAO-3 Satellite Herschel Space Observatory HETE-2 IMAGE - Imager for Magnetopause-to-Aurora Global Exploration IMP 8 INTERBALL International Solar-Terrestrial Physics Science Initiative (ISTP) ISOMAX - Isotope Magnet Experiment Kepler Mission Landsat Program Landsat 7 Lincoln Near Earth Asteroid Research (LINEAR) Lunar Exploration Lunar Prospector MACHO Project Magellan Mission to Venus MAP - The Microwave Anisotropy Probe Mars Express Mission Mars Global Surveyor Mars Missions, Year 2000 and Beyond! Mars Polar Lander Mars Surveyor Landing Sites Mission and Spacecraft Library Multi-angle Imaging SpectroRadiometer(MISR) NASA Deep Space Network - DSN NASA Explorer Missions NASA Human Space Flight NASA Shuttle Page Near Earth Asteroid Rendezvous (NEAR Shoemaker) Near Earth Asteroid Tracker (NEAT) Planck The Plasma Wave Investigation (PWI) Polar HYDRA RHESSI The Rossi X-Ray Timing Explorer Project Space Infrared Telescope Facility (SIRTF) Solar Probe Space Interferometry Mission (SIM) Spitzer Stardust Submillimeter Wave Astronomy Satellite (SWAS) SuperDARN Terra Terrestrial Planet Finder TOPEX/POSEIDON Satellite Transition Region and Coronal Explorer (TRACE) UCLA - IGPP Missions Ulysses Venera The VLA FIRST Survey Voyager Voyager 2 Viking XEUS - X-ray Evolving Universe Spectroscopy Mission X-ray MEGA Campaign on Hot Stars XMM-Newton Observatories Andromeda Observatory Anglo-Australian Observatory Antarctic Submillimeter Telescope and Remote Observatory (AST/RO) Apache Point Observatory Arecibo Observatory Arkansas Tech University Celestial Observatory Armagh Observatory Astrophysikalisches Institut Potsdam Athabasca University Geophysical Observatory (AUGO) The Australia Telescope Compact Array The Australian Space Weather Agency The Bechtel Telescope Beijing Astronomical Observatory Berkeley Automated Imaging Telescopes (BAIT) Berkeley Radio Astronomy Lab (RAL) Big Bear Solar Observatory BIMA Radiosynthesis Array Birmingham Solar Oscillations Network Bologna Astronomical Observatory Bradford Robotic Telescope Observatory Caltech Observatories Calvin Observatory Cambridge Astronomical Survey Unit (CASU) Wide Field Survey (WFS) Canada-France-Hawaii Telescope Carnegie Observatories Catania Astrophysical Observatory Cerro Tololo Inter-American Observatory (CTIO) Clark Planetarium Compton Gamma Ray Observatory The Constellation-X Mission Telescopes Coordinated Millimeter VLBI Array (CMVA) Crimean Astrophysical Observatory Dark Sky Observatory at Appalachian State University Degree Angular Scale Interferometer (DASI) Dominion Radio Astrophysical Observatory The du Pont and Swope Telescopes Dominion Radio Astrophysical Observatory Dutch Open Telescope (DOT) Edinboro University Observatory Energetic X-Ray Imaging Survey Telescope (EXIST) European Southern Observatory Faint Sky Variability Survey (FSVS) Fairborn Observatory: Tennesee State: Automatic Telescope Site FitzRandolph Observatory Five College Radio Astronomy Observatory Fred Lawrence Whipple Observatory (FLWO) Giant Magellan Telescope (GMT) Gemini Observatory Green Bank Telescope (GBT) Griffith Observatory The Grove Creek Observatory The HAARP Ionospheric Research Observatory Haleakala High Altitude Observatory Site Hamburger Sternwarte Hanford Observatory Hat Creek Radio Observatory Haystack Observatory Heinrich Hertz Submillimeter Telescope Observatory Herschel Space Observatory High Altitude Observatory (HAO) High Energy Focusing Telescope The High Resolution Camera (HRC) on the Chandra X-ray Observatory (CXO) Hiraiso Solar Terrestrial Research Center Hobby-Eberly Telescope Hopkins Ultraviolet Telescope (HUT) Hubble Space Telescope (ESA) Ice Fog Observatory Infrared-Optical Telescope Array (IOTA) Iowa Robotic Telescope Facility The Isaac Newton Group of Telescopes (ING) James Clerk Maxwell Telescope (JCMT) James Webb Space Telescope (JWST) Jodrell Bank Observatory KamLAND Kanzelhvhe Solar Observatory W.M. Keck Observatory Kiepeheuer-Institut fuer Sonnenphysik Kitt Peak National Observatory (KPNO) La Silla Observatory Large Binocular Telescope Las Brisas Observatory (LBO) Laser Interferometer Gravitational-Wave Observatory (LIGO) Learmonth Solar Observatory Lick Observatory Livingston Observatory The Low Frequency Array (LOFAR) Lowell Observatory The Magellan Telescopes Manastash Ridge Observatory Mauna Kea Observatories McDonald Observatory Mees Solar Observatory Metsahovi Radio Observatory Meudon Observatory Michelle - Imager/Spectrometer for UKIRT and Gemini Millstone Hill Observatory MIRLIN - The JPL Deep-Well Mid-Infrared Array Camera Morehead State University Astrophysical Observatory Mt. Graham International Observatory (MGIO) Mt. 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IPAC OASIS IRAF Project Homepage IRAS - Infrared Astronomical Satellite Archive Interface IRSA - Infrared Science Archives ISIS ISTP CDHF WWW Database Interface ISTP Spacecraft Orbit Plots JHU/APL AMPTE/CCE Science Data Center (SDC) JIPA JPL's HORIZONS System JPL Molecular Spectroscopy JSky - Java Components for Astronomy Keith's XRT Page Laboratory for Computational Astrophysics (LCA) Lacaille's "Catalogue of Nebulae of the Southern Sky" Landsat Data Acess LANL Geosynchronous Energetic Particle Data LDAC LEDAS (LEicester Database and Archive Service) Lunar Data at NSSDC Mars Global Surveyor Laser Altimeter Mars Global Surveyor MOC Data Mars Odyssey Data Archives Mars Orbiter Laser Altimeter (MOLA) Science Investigation MAST - Multimission Archive at STScI Mathematics (Science) Milky Way Globular Cluster Parameters Mission and Spacecraft Library (MSL) MIT MKI Online Data MIT Haystack Observatory - Madrigal Database The MIT Near Real-Time Test Correlator McMaster Cepheid Photometry and Radial Velocity Data Archive Modeling Earth's Magnetosphere Using Spacecraft Magnetometer Data Multiwavelength Milky Way Science Users Multiyear Interactive Computer Almanac (MICA) NASA COSMIC Collection NASA Earth Observatory NASA/GSFC Orbital Information Group NASA/IPAC - Infrared Processing and Analysis Center NASA/IPAC Extragalactic Database (NED) NASA Planetary Data System (PDS) NASA Planetary Data System Geophysics Subnode NASA Planetary Data System Rings Node NASA Planetary Data System Small Bodies Node NASA Solar Data Analysis Center NASA Remote Sensing Data and Information National Climatic Data Center (NCDC) National Geophysical Data Center (NGDC) The National Optical Astronomy Observatory National Space Science Data Center (NSSDC) National Synchrotron Light Source at Brookhaven National Laboratory NEC ResearchIndex (CiteSeer) NEO Program NIRSPEC: Near-Infrared Echelle Spectrograph for the Keck II Telescope NIST Dictionary of Algorithms and Data Structures NIST Guide to Available Mathematical Software NIST Math, Statistics, and Computational Science NOAA - National Environmental Satellite, Data, and Information Service (NESDIS) NOAA Satellite Active Archive (SAA) NOAA - Office of Satellite Data Processing and Distribution (OSDPD) NORTH6CM - 6cm Radio Catalog NOVAS The NRAO VLA Sky Survey (NVSS) NSSDC CD-ROM Catalog NSSDC Space Physics Numerical Recipes Observer's Handbook Resources OMNIWeb Near-Earth Heliosphere Data OSCIR Homepage OSS Research Opportunities On-line P-mode Oscillation (POI) Images Parkes Multibeam Pulsar Survey Particle Physics Information & Databases PDS Imaging Node PDS Mars Global Surveyor MOC Image Collection Perl (+related) resources PGPERL Physical reference data from NIST Planetarium Software Planetary Data System Microwave Subnode Planetary Nebulae Gallery Planetary Science Research Discoveries (PSRD) PM Survey Pulsar Catalogue PostgreSQL Resources PROS/XRAY Data Analysis System (Ptools) The Parallel Tools Consortium PWI PAPCO Homepage Radio Observatory Online: University of Florida RHESSI Data & Software Center SAO/Head R&D Group SAO ROSAT Science Data Center SAOImage Display Utility SAOImage DS9 SBIG Astronomical Instruments Scirus - For Scientific Information U.S. ROSAT Science Data Center Satellite Situation Center (SSCWeb) System and Services Science Archive Facility SEDS Archive SEDS MESSIER Database ScienceDirect SIMBAD Astronomical Database Sloan Digital Sky Survey SkyServer Software and Data from David H. 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