Astronomers have used the European Southern Observatory’s (ESO) New Technology Telescope (NTT) and the Hubble Space Telescope to explore more than 100 planetary nebulae in the central bulge of our ...
When a star runs out of fuel, it sheds its outer layers of gas and, if it doesn't explode in a supernova, forms a glowing shell of ionized gas that expands into space. Shells like these are known as ...
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Hubble reveals the lost galaxy NGC 4535
Among the countless galaxies in the cosmos, some remain faint from Earth. NGC 4535, located about 50 million light-years away ...
NASA, Donald Walter/South Carolina State University/Paul Scowen/ Brian Moore/Arizona State University A glimpse up at the night sky will reveal a seemingly endless landscape of twinkling stars, but ...
When it comes to viewing nebulae, galaxies, and other deep-sky objects, amateur astronomers on a budget have had two options.
As we continue to break new ground in the field of cosmology, the importance of carefully categorizing the objects we see comes into focus. Part of this stems from the fact that, increasingly, we find ...
The birth of the most massive stars -- those ten to a hundred times the mass of the Sun -- has posed an astrophysical riddle for decades. Massive stars are dense enough to fuse hydrogen while they're ...
When most amateur astronomers think of dark nebulae, the Horsehead Nebula (Barnard 33) immediately comes to mind. If you haven’t seen it, you’ve surely seen the Great Rift — a region in the ...
A way of estimating more accurate distances to the thousands of so-called planetary nebulae dispersed across our galaxy has been announced. The announcement was made by a team of three astronomers ...
Dust obscures a lot of light coming from stars, particularly more distant ones. It also gives a glow to such strange things as nova nebulae. I've heard it said that without interstellar dust to ...
As we continue to break new ground in the field of cosmology, the importance of carefully categorizing the objects we see comes into focus. Part of this stems from the fact that, increasingly, we find ...
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