Astronomers have discovered more than 200 distant variable stars known as RR Lyrae stars in the Milky Way's stellar halo. The most distant of these stars is more than a million light years from Earth, almost half the distance ...
Astronomy
Jan 9, 2023
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Polish astronomers have performed photometric observations of a short-period variable star known as NSVS 2983201. They have found that the object is a contact binary system with a mass ratio of about 0.36. The finding was ...
Astronomers from the Aryabhatta Research Institute of observational sciencES (ARIES) and from the Physical Research Laboratory in India report the detection of 57 variable stars in the field of the open cluster NGC 381. The ...
Using the Indian Astronomical Observatory (IAO) in Hanle, India, astronomers have observed a globular cluster known as NGC 7006. Results of the study, presented December 9 on the arXiv pre-print server, yield important insights ...
Against an inky black backdrop, the blue swirls of spiral galaxy NGC 6956 stand out radiantly. NGC 6956 is a barred spiral galaxy, a common type of spiral galaxy with a bar-shaped structure of stars in its center. This galaxy ...
Astronomy
Dec 16, 2022
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Extreme weather and ocean events are on the rise around the world, due largely to human-caused climate change. But to fully understand these changes—and, ideally, to predict when and where they may occur in the future—researchers ...
Environment
Dec 12, 2022
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81
In the top left corner of this starry sight, the globular cluster NGC 2031 shines brilliantly. This dense group of thousands of stars is held together in a spherical shape by its stars' mutual gravitational attraction. The ...
Astronomy
Dec 8, 2022
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4
An international team of astronomers has performed a long-term multiwavelength study of a distant gamma-ray emitting blazar known as 1ES 0647+250. Results of the research, published November 23 on arXiv.org, yield important ...
Antarctic sea ice deeply affects the global climate in several ways. It regulates the exchanges of heat and gases between the ocean surface and the atmosphere, and drives the formation of the Antarctic Bottom Water that travels ...
Earth Sciences
Dec 5, 2022
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25
New Chinese research suggests that optical variability in emission-line galaxies (ELGs) is likely caused by star-formation activity rather than the activity of supermassive black holes.
Astronomy
Dec 2, 2022
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