The European Southern Observatory’s unimaginatively-named but incredibly powerful Very Large Telescope (VLT) located on a remote plateau high in the mountains of Chile’s Atacama Desert has captured a detailed view of NGC 1055, a spiral galaxy a little larger than our own located 55 million light-years away. On galactic scales this is relatively close by, and our edge-on perspective allows astronomers to determine the three-dimensional structure of this island of stars.
Spiral galaxies across the Universe can be found at all angles in relation to our viewpoint here on Earth. Some we see “face on,” which dramatically shows a spiral galaxy’s long, arcing arms and bright center but make it difficult to get a sense of true shape or variations in density. With NGC 1055 we see it “on edge,” without which it likely wouldn’t be known that it’s being tugged by one of its galactic neighbors.
Read the full story from ESO here: A Galaxy on the Edge
It’s Hubble’s 25th anniversary in space this year but it seems like we’re the ones getting all the presents! Yesterday NASA released two new high-def versions of the famous “Pillars of Creation” image, and now today there’s this: Hubble’s most detailed image ever of the Andromeda Galaxy!
Containing over 100 million stars it’s not just the best view yet of Andromeda – it’s also the most expansive image ever made with Hubble. Although the galaxy is 2.5 million light-years away it extends across an area larger than the full Moon in the sky, so to create such a detailed mosaic Hubble had to obtain 7,398 images taken over 411 individual pointings! It’s 1.5 billion pixels covering an area over 40,000 light-years across.
According to NASA, it’s “like photographing a beach and resolving individual grains of sand.” Wow!
Check out the full image below:
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Here’s a new video from the folks at NASA’s Goddard Space Flight Center in Greenbelt, MD that will make you fall in love with the Universe…for the first time, or all over again.
It’s a good reminder that, even though the shuttles are retired, NASA still has its eyes set on the stars (and planets, and moons, and asteroids, and of course on our own little blue world!)
NASA dreams big science. Come for the cool, stay for the music, take away a sense of wonder to share. It’s six minutes from Earth to forever, and you can see it here!
This video is public domain and can be downloaded at: http://svs.gsfc.nasa.gov/goto?10958