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  • Astronomy

    Astronomy Picture of the Week – Whirlpool Galaxy

    March 3, 2011 /

    This image of the spiral galaxy M51, dubbed the Whirlpool Galaxy, was taken by NASA's Hubble Space Telescope. M51 is a typical spiral galaxy which includes graceful, curving arms, pink star-forming regions, and brilliant blue strands of star clusters. It is located at a distance of approximately 31 million light-years from the Milky Way Galaxy ...

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    Paul Tomaszewski

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    Lyrids Meteor Shower Radiant Point. Image by Deborah Byrd from EarthSky.org.

    Monthly Stargazing Calendar for April 2016

    April 1, 2016
    Dwarf Planet Haumea With Rings Artists View

    Stargazing Calendar for April 2023

    April 11, 2023
    Background Cosmic Radiation image courtesy of NASA.

    Origin of Our Universe – Gravitational Waves and Cosmic Inflation

    October 23, 2015
  • Astronomy

    Astronomy Picture of the Week – Supernova Bubble Resembling Holiday Ornament

    February 24, 2011 /

    This image was made by combining data from two of NASA's Great Observatories: the Hubble Space Telescope and the Chandra X-ray Observatory. The supernova remnant, cataloged as SNR 0509-67.5, is the result of a type Ia supernova. It is located in the Large Magellanic Cloud (LMC), a small galaxy about 160,000 light-years from Earth.

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    Paul Tomaszewski

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    Astronomy Picture of the Week – Galaxy Cluster MS0735

    August 17, 2011
    Dark Sky Magnitude Scale by International Dark Sky Association

    Light Pollution – What Is It and Why It’s Bad

    October 24, 2015
    Moon Phases Calendar September 2014

    Monthly Stargazing Calendar for September 2014

    September 5, 2014
  • Astronomy

    Cosmic Hearts

    February 15, 2011 /

    I hope you all had a happy Valentine's Day! :) Here are some pictures of cosmic hearts: A heart-shaped crater on Mars captured by the Mars Orbiter Camera onboard the Mars Global Surveyor. A heart-shaped Nebula, called W5, located 6000 light years away in the constellation of Cassiopeia.

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    Paul Tomaszewski

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    Monthly Stargazing Calendar for February 2012

    February 4, 2012
    Dark Sky Magnitude Scale by International Dark Sky Association

    Light Pollution – What Is It and Why It’s Bad

    October 24, 2015
    Leo Constellation Map IAU

    Monthly Stargazing Calendar for November 2013

    November 11, 2013
  • Astronomy

    Astronomy Picture of the Week – The Cat’s Eye Nebula

    February 11, 2011 /

    This detailed view of the so-called Cat's Eye Nebula was taken by NASA's Hubble Space Telescope. The nebula, formally cataloged as NGC 6543, was one of the first planetary nebulae to be discovered and is one of the most complex. Observations suggest the star ejected its mass in a series of pulses at 1,500-year intervals. ...

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    Paul Tomaszewski

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    Messenger Mercury Orbiter

    NASA’s Messenger Mission to Mercury [Infographic]

    May 31, 2013

    Dark Asteroids Discovered, Possible Threat to Earth

    March 6, 2010
    Sunjammer Solar Sail Prototype

    What Is LightSail and How Does It Work?

    December 23, 2019
  • Futurism,  Space Exploration

    Non-Rocket Spacelaunch – Launch Loop

    February 8, 2011 /

    A launch loop (also known as a Lofstrom loop) is a proposed design for a very efficient non-rocket spacelaunch method. It is a much simpler concept than the space elevator, but still more complex than tether propulsion systems such as the rotovator.

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    Paul Tomaszewski

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    Non-Rocket Spacelaunch – Tether propulsion

    January 11, 2011

    Non-Rocket Spacelaunch – Space Elevators in Fiction

    January 9, 2011

    An Artist’s Vision of a Future Colony on the Moon

    October 1, 2010
  • Astronomy

    Astronomy Picture of the Week – Polarized Star Light

    February 2, 2011 /

    This picture taken by the Hubble Space Telescope shows the polarized light of the massive star VY Canis Majoris. Image Credit: NASA, ESA, and R. Humphreys (University of Minnesota)

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    Paul Tomaszewski

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    Fireworks Galaxy & Moon + ISS alignment

    January 1, 2011

    Astronomy Picture of the Week – Rings of Uranus

    July 6, 2011
    Jupiter Voyager 1. Courtesy of NASA.

    Monthly Stargazing Calendar for March 2016

    March 1, 2016
  • Astronomy

    Astronomy Picture of the Week – Interacting Spiral Galaxies NGC 2207 and IC 2163

    January 27, 2011 /

    This near-collision has been caught in a photo by NASA's Hubble Space Telescope. Two spiral galaxies pass by each other like majestic ships in the night. They are located in the direction of the constellation Canis Major.

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    Paul Tomaszewski

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    Tatooine-Like Planet Discovered Orbiting Two Suns

    September 17, 2011

    Astronomy Picture of the Week – Io Moon Of Jupiter

    September 6, 2010

    Astronomy Picture of the Week – The Rosette Nebula

    March 7, 2010
  • Futurism,  Science Fiction,  Space Exploration

    Non-Rocket Spacelaunch – Tether propulsion in fiction

    January 23, 2011 /

    This is the fourth and final part of the tether propulsion article of the non-rocket spacelaunch methods article series. This post will focus on references to the tether propulsion concept in fiction. The most prominent science fiction novels on the subject include the following.

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    Paul Tomaszewski

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    An Artist’s Vision of a Future Colony on the Moon

    October 1, 2010

    Antimatter Discovered Around Earth

    August 15, 2011

    Non-Rocket Spacelaunch – Space Elevator

    January 2, 2011
  • Futurism,  Science Fiction,  Space Exploration

    Non-Rocket Spacelaunch – Tether propulsion safety issues

    January 21, 2011 /

    The use of tethers in space poses many challenges and safety issues. This third part to the tether propulsion article will focus on those issues. A lot of the challenges and safety issues of a space tether system are similar to those of a space elevator described in a previous article, but some are unique to the space tether concept.

    read more
    Paul Tomaszewski

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    Non-Rocket Spacelaunch – Launch Loop

    February 8, 2011
    Space Internet

    Space Internet [Infographic]

    September 12, 2014

    Antimatter Discovered Around Earth

    August 15, 2011
  • Astronomy

    Astronomy Picture of the Week – The Colorful Demise of a Sun-Like Star

    January 19, 2011 /

    This image, taken by the Hubble Space Telescope, shows the colorful demise of a Sun-like star. The star is ending its life by casting off its outer layers of gas, which formed a cocoon around the star's remaining core. Ultraviolet light from the dying star makes the material glow. The burned-out star, called a white ...

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    Paul Tomaszewski

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    Astronomy Picture of the Week – Sombrero Galaxy

    February 28, 2010

    Astronomy Picture of the Week – Jupiter as seen by Hubble

    June 16, 2011

    Astronomy Picture of the Week – Crescent Neptune and Triton

    June 6, 2010
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