clusters
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Space & Cosmos
Two clusters of dark comets in our solar system could tell researchers where Earth’s oceans are located
Dark comets fly through space, but unlike comets, they do not have dust tails. Credit: Adina Feinstein and NASA Earth Observatory The water that makes up the oceans served as an important element for the development of life on Earth. But scientists still don’t know where the water on Earth comes from in the first place. One leading idea is…
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Space & Cosmos
Astronomers map ‘danger zone’ of planet-forming disks in star clusters
X-ray: NASA/CXC/SAO/J. Drake et al, IR: NASA/JPL-Caltech/Spitzer; Image processing: NASA/CXC/SAO/N. walk Most stars form collections called clusters or federations that contain very massive stars. These massive stars emit large amounts of high-energy radiation that can destroy relatively fragile disks of dust and gas that are in the process of merging to form new planets. A team of astronomers uses NASA’s…
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