All stars are composed of mostly hydrogen and helium, but most stars also have measurable amounts of heavier elements, which astronomers lump into the category of "metals." Our sun has more metals than most stars because ...
Astronomy
Nov 8, 2022
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100
The NASA/ESA Hubble Space Telescope's Wide Field Camera 3 imaged this lonely spiral galaxy called UGC 9391.
Astronomy
Oct 3, 2022
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9
These spectacular images feature the spiral galaxy IC 5332, taken by the NASA/ESA Hubble Space Telescope (above) and the NASA/ESA/CSA James Webb Space Telescope (below). The images display the powerful capabilities that both ...
Astronomy
Sep 27, 2022
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21
"To see a world in a grain of sand," the opening sentence of the poem by William Blake, is an oft-used phrase that also captures some of what geologists do.
Planetary Sciences
Aug 24, 2022
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368
Dr. Lu Xing, an associate researcher from the Shanghai Astronomical Observatory (SHAO) of the Chinese Academy of Sciences, along with collaborators from Yunnan University, the Harvard-Smithsonian Center for Astrophysics, ...
Astronomy
Jun 2, 2022
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173
This image from NASA's Hubble Space Telescope features the Grand Design Spiral, NGC 3631, located some 53 million light-years away in the direction of the constellation Ursa Major. The "arms" of grand design spirals appear ...
Astronomy
May 27, 2022
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171
An international group of astronomers, led by a physicist at the University of St Andrews, has revived an alternative gravity theory.
Astronomy
May 20, 2022
10
207
This new NASA Hubble Space Telescope image looks at one of the nearest, massive lenticular galaxies to Earth, NGC 1023 some 36 million light-years away. Lenticular galaxies get their names from their edge-on appearance that ...
Astronomy
May 20, 2022
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73
Using a combination of observed stars and a realistic model of the Milky Way, scientists at the Max Planck Institute for Extraterrestrial Physics have found a new structure in our home galaxy. Just outside the galactic bar, ...
Astronomy
Apr 5, 2022
2
180
This impressive image shows the strangely lopsided spiral galaxy NGC 772, which lies over 100 million light-years from Earth in the constellation Aries. Captured by the Gemini North telescope in Hawai'i, one half of the international ...
Astronomy
Mar 22, 2022
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