WHY AND WHAT IS 2.0?

This Day in History 2.0 is a vehicle for updating my original blog. I decided rather than mess with the large number of current posts in the original blog that a complete ground up rebuild was needed. I anticipate that this effort will take the better part of a year. I hope to apply techniques I have learned from my years of blogging. Readers that have linked to the old blog will not find their links disappearing.

Feel free to email with your thoughts and ideas.

NASA APOD Monthly Gallery For April 2009

APRIL 2009 NASA ASTRONOMY PICTURE OF THE DAY GALLERY


Astronaut's Head Upgraded During Spacewalk


Credit: NASA
Click picture to go to NASA APOD site for full explanation


100 Hours of Astronomy Begins


Credit & Copyright: Tamas Ladanyi (TWAN)
Click picture to go to NASA APOD site for full explanation


Around the World in 80 Telescopes


Illustration Credit & Copyright: ESO / 100 Hours of Astronomy
Click picture to go to NASA APOD site for full explanation


Star Party on Planet Earth


Image Credit & Copyright: Babak Tafreshi (TWAN)
Click picture to go to NASA APOD site for full explanation


Orange Sun Oozing


Credit: Bruno Sánchez-Andrade Nuño et al. (IAG & MPS, NRL)
Click picture to go to NASA APOD site for full explanation


International Space Station Expands Again


Credit: STS-119 Shuttle Crew, NASA
Click picture to go to NASA APOD site for full explanation


The Colliding Spiral Galaxies of Arp 274


Credit: NASA, ESA, M. Livio (STScI) and the Hubble Heritage Team (STScI/AURA)
Click picture to go to NASA APOD site for full explanation


Unusual Dusty Galaxy NGC 7049


Credit: NASA, ESA and W. Harris (McMaster University)
Click picture to go to NASA APOD site for full explanation


Venus Near Inferior Conjunction


Credit & Copyright: Eddie Guscott
Click picture to go to NASA APOD site for full explanation


ISS and Astronaut


Credit & Copyright: Ralf Vandebergh
Click picture to go to NASA APOD site for full explanation


The Big Picture


Credit & Copyright: Dennis di Cicco (TWAN) & Sean Walker, Skyandtelescope.com
Click picture to go to NASA APOD site for full explanation


M39: Open Cluster in Cygnus


Credit: Heidi Schweiker, WIYN, NOAO, AURA, NSF
Click picture to go to NASA APOD site for full explanation


Star Trails over the Canada-France-Hawaii Telescope


Credit & Copyright: Jean-Charles Cuillandre (CFHT)
Click picture to go to NASA APOD site for full explanation


M101: The Pinwheel Galaxy


Credit & Copyright: Adam Block, Mt. Lemmon SkyCenter, U. Arizona
Click picture to go to NASA APOD site for full explanation


Jagged Shadows May Indicate Saturn Ring Particles


Credit: NASA, JPL, Space Science Institute
Click picture to go to NASA APOD site for full explanation


Castle and Full Moon


Credit & Copyright: Paolo Tanga, Observatoire de la Cote d'Azur
Click picture to go to NASA APOD site for full explanation


Medieval Astronomy from Melk Abbey


Credit: Paul Beck (Univ. Vienna), Georg Zotti (Vienna Inst. Arch. Science) Copyright: Library of Melk Abbey, Frag. 229
Click picture to go to NASA APOD site for full explanation


NGC 1333 Stardust


Credit & Copyright: Stephen Leshin
Click picture to go to NASA APOD site for full explanation


The View Near a Black Hole


Drawing Credit: April Hobart, CXC
Click picture to go to NASA APOD site for full explanation


Flowing Barchan Sand Dunes on Mars


Credit: HiRISE, MRO, LPL (U. Arizona), NASA
Click picture to go to NASA APOD site for full explanation


Global Warming Predictions


Credit & Copyright: Robert A. Rohde, Global Warming Art
Click picture to go to NASA APOD site for full explanation


Sky Panorama Over Lake Salda


Credit & Copyright: Tunç Tezel (TWAN)
Click picture to go to NASA APOD site for full explanation


Sharpless 308


Credit & Copyright: Don Goldman
Click picture to go to NASA APOD site for full explanation


Moon and Morning Star


Credit & Copyright: David Cortner
Click picture to go to NASA APOD site for full explanation


Dark Markings of the Sky


Credit & Copyright: Steve Cannistra (StarryWonders)
Click picture to go to NASA APOD site for full explanation


NGC 4676: When Mice Collide


Credit: ACS Science & Engineering Team, Hubble Space Telescope, NASA
Click picture to go to NASA APOD site for full explanation


Prometheus Creating Saturn Ring Streamers


Credit: Cassini Imaging Team, ISS, JPL, ESA, NASA
Click picture to go to NASA APOD site for full explanation


NGC 4565: Galaxy on the Edge


Credit & Copyright: Roth Ritter (Dark Atmospheres)
Click picture to go to NASA APOD site for full explanation


GRB 090423: The Farthest Explosion Yet Measured


Credit: Gemini Observatory / NSF / AURA, D. Fox & A. Cucchiara (Penn State U.), and E. Berger (Harvard Univ.)
Click picture to go to NASA APOD site for full explanation


Framed by Clouds


Credit & Copyright: Pete Lawrence (Digital-Astronomy)
Click picture to go to NASA APOD site for full explanation


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NASA APOD Monthly Gallery for March 2009

MARCH 2009 NASA ASTRONOMY PICTURE OF THE DAY GALLERY


Omega Centauri: The Largest Nearby Globular Cluster


Credit & Copyright: Thomas V. Davis (tvdavisastropix.com)
Click picture to go to NASA APOD site for full explanation


Earthgrazer: The Great Daylight Fireball of 1972


Credit & Copyright: James M. Baker
Click picture to go to NASA APOD site for full explanation


The Helix Nebula from La Silla Observatory


Credit: WFI, MPG/ESO 2.2-m Telescope, La Silla Obs., ESO
Click picture to go to NASA APOD site for full explanation


Saturn in View


Credit & Copyright: Jean-Luc Dauvergne, Francois Colas, OMP
Click picture to go to NASA APOD site for full explanation


IC 5146: The Cocoon Nebula


Credit & Copyright: Neil Fleming, David Plesko
Click picture to go to NASA APOD site for full explanation


Crescent Moon and Venus


Credit & Copyright: Drew Sullivan (Ancient Starlight)
Click picture to go to NASA APOD site for full explanation


Comet Lulin and Distant Galaxies


Credit & Copyright: Johannes Schedler (Panther Observatory)
Click picture to go to NASA APOD site for full explanation


Gibbous Europa


Credit: Galileo Project, JPL, NASA; reprocessed by Ted Stryk
Click picture to go to NASA APOD site for full explanation


Kepler's Streak


Credit & Copyright: Ben Cooper
Click picture to go to NASA APOD site for full explanation


Horsehead and Orion Nebulae


Credit & Copyright: Dale J. Martin (Massapoag Pond Obs.)
Click picture to go to NASA APOD site for full explanation


Lunar X


Credit & Copyright: Jerry Lodriguss (Catching the Light)
Click picture to go to NASA APOD site for full explanation


Thor's Helmet (NGC 2359) and Planetary Nebula


Credit & Copyright: Rogelio Bernal Andreo, Ray Gralak
Click picture to go to NASA APOD site for full explanation


Hickson Compact Group 90


Credit: NASA, ESA, R. Sharples (Univ. Durham)
Click picture to go to NASA APOD site for full explanation


Haute-Provence Star Trails


Credit & Copyright: Alexandre Santerne / OHP-CNRS
Click picture to go to NASA APOD site for full explanation


A Prominent Solar Prominence from SOHO


Credit: SOHO - EIT Consortium, ESA, NASA
Click picture to go to NASA APOD site for full explanation


Martian Moon Deimos from MRO


Credit: HiRISE, MRO, LPL (U. Arizona), NASA
Click picture to go to NASA APOD site for full explanation


Tycho's Supernova Remnant


Credit: X-ray: NASA/CXC/SAO; Infrared: NASA/JPL-Caltech; Optical: MPIA, Calar Alto, O. Krause et al.
Click picture to go to NASA APOD site for full explanation


GLOBE at Night: Help Track Light Pollution


Credit & Copyright: Globe at Night Project, UCAR, International Year of Astronomy 2009
Click picture to go to NASA APOD site for full explanation


Saturn: Moons in Transit


Credit: NASA, ESA, Hubble Heritage Team (STScI/AURA) Acknowledgment: M.H. Wong (STScI/UC Berkeley), C. Go (Philippines)
Click picture to go to NASA APOD site for full explanation


Sunset at the Portara


Credit & Copyright: Anthony Ayiomamitis (TWAN)
Click picture to go to NASA APOD site for full explanation


Fermi's Gamma-Ray Sky


Credit: NASA, DOE, Fermi LAT Collaboration
Click picture to go to NASA APOD site for full explanation


Sungrazer


Credit: LASCO, SOHO Consortium, NRL, ESA, NASA
Click picture to go to NASA APOD site for full explanation


The Seahorse of the Large Magellanic Cloud


Credit: NASA, ESA, and M. Livio (STScI)
Click picture to go to NASA APOD site for full explanation


Martian Dunes and the Shadow of Opportunity


Credit: Mars Exploration Rover Mission, JPL, NASA
Click picture to go to NASA APOD site for full explanation


Orcus of the Outer Solar System


Credit: M. Brown (Caltech), C. Trujillo (Gemini), D. Rabinowitz (Yale), Samuel Oschin Telescope
Click picture to go to NASA APOD site for full explanation


Stars Young and Old


Credit & Copyright: Roth Ritter (Dark Atmospheres)
Click picture to go to NASA APOD site for full explanation


The Seagull Nebula


Credit & Copyright: Frank Barrett, Steve Davis
Click picture to go to NASA APOD site for full explanation


Almahata Sitta 15


Credit & Copyright: Peter Jenniskens (SETI Institute/NASA Ames)
Click picture to go to NASA APOD site for full explanation


Signals of a Strange Universe


Credit: High-Z Supernova Search Team, HST, NASA
Click picture to go to NASA APOD site for full explanation


Possible Mud Volcanoes on Mars


Credit: HiRISE, MRO, LPL (U. Arizona), NASA
Click picture to go to NASA APOD site for full explanation


In the Heart of the Tarantula Nebula


Credit: ESA, NASA, ESO, & Danny LaCrue
Click picture to go to NASA APOD site for full explanation


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