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NASA Unveils Stunning New Milky Way Portrait

NASA's Spitzer Space Telescope has provided a stunning infrared view of the Milky Way galaxy the likes of which has never been seen before. This image is just a small portion of the  20 gigapixel mosaic available for the public to click and zoom. Credit: NASA/JPL-Caltech/University of Wisconsin
NASA’s Spitzer Space Telescope has provided an unprecedented infrared view of the Milky Way galaxy. This image represents a small portion of the 20-gigapixel mosaic available online. Credit: NASA/JPL-Caltech/University of Wisconsin

Talk about an out-of-this-world map! NASA has unveiled a stunning new clickable panoramic portrait of our home galaxy, the Milky Way.

The zoomable, 360-degree view was constructed from more than two million infrared snapshots taken over the past ten years by NASA’s Spitzer Space Telescope.

“If we actually printed this out, we’d need a billboard as big as the Rose Bowl Stadium to display it,” said Robert Hurt, an imaging specialist at NASA’s Spitzer Space Science Center in Pasadena, California.

“Instead, we’ve created a digital viewer that anyone, even astronomers, can use.”

Despite its 20-gigapixel size, the new map captures only about 3 percent of our sky. However, since the space telescope’s vision was focused for a total of 172 days along the thin disk of the Milky Way galaxy, it shows more than half of its stars. Most of the dusty, jam-packed star fields that we see in this mosaic appear crowded together along the central bar of stars that marks the downtown core of our galaxy.

Overall, the Milky Way resembles a common spiral galaxy, one that takes on a flattened disk shape, with our little solar system located in the outer third of one of its arms.

Take your own tour of the Milky Way online at http://www.spitzer.caltech.edu/glimpse360.

See for Yourself

Anyone under dark skies away from city lights can step outside on any clear night this time of the year and check out the beauty of the Milky Way for themselves.

This sky chart shows the Milky Way arch stretching across the western sky through some of the major winter constellations visible after nightfall at the end of March. Credit: Starry Night Software / A.Fazekas
This sky chart shows the Milky Way arch stretching across the western sky through some of the major winter constellations visible after nightfall at the end of March. Credit: Starry Night Software / A. Fazekas

Face toward the western sky and observe the ghostly glow of our galaxy, seen in the form of a faint arc of light stretching from the low northern horizon up high through the west. It then sweeps down through the south.

The entire path that the Milky Way follows in the heavens (which is in fact one of the spiral arms of our galaxy laid out before us) can be easily traced, because it plows right through some of the brightest wintertime constellations. They are now setting in the west in the Northern Hemisphere. For folks in the Southern Hemisphere, the Milky Way appears stretched out from the southeast to the west.

If you are stuck in the light-polluted suburbs, the Milky Way is pretty much invisible. However, with an average pair of binoculars, you can easily scan the sky and tour the vast numbers of clusters and streams of stars that make up the Milky Way. Just follow the bright constellation of stars such as Sirius, Betelgeuse, and Capella, which will act as your guideposts.

It is amazing to think that all the countless points of light that make up this starry band are actually millions of stars. Most of them are tens of thousands of light-years away from Earth, yet are part of the island of stars that we call our galactic home.

Follow Andrew Fazekas, the Night Sky Guy, on Twitter,  Facebook, and his website.

Comments

  1. the planet man
    April 10, 9:26 pm

    very good and intresting facts but many wonder what other life are out in the galaxy. some theorys state that the ”aliens” are out there but we really cant know but im no scientist but i dont believe in aliens as too we can not prove that they are real.

  2. ezmeralda
    Paris, France
    April 5, 12:23 pm

    That’s really impressive! NASA is really improving and doing a lot of hard work to discover the universe!! Great job NASA keep up the good work :)

  3. Nat Turner
    April 4, 2:22 pm

    It is good to know that after so many millennia that man has not ceased to look to the stars from whence the ancients taught us so much wisdom and left us markers with which to remember.
    The pyramid complex at Giza & beyond in Egypt being a precise copy of the Orion constellation known as the God Osiris “Lord of the Perfect Black”, with the great water way the River Nile or Gihon “impersonating” the Milky Way.
    Some argue that the rivers were indeed our earliest roads, if so the Nile’s association to the Milky Way exemplifies it well.
    Great photograph.

  4. Gayle Trent
    Plano, TX USA
    March 29, 9:00 pm

    Would it be possible to obtain a color 9×12 photo, suitable
    for framing of the image of the Milky Way portrayed in your article?
    Thanks

  5. bern stein
    UK
    March 29, 7:53 pm

    I am impressed. Very few journalists got this report right. Concise and correct.

  6. Harshil Darji
    India
    March 28, 11:55 am

    Hey !
    Nice Blog…
    I also want to write blogs here, Can you tell me How to do this ?