Astronomers propose novel method of measuring galaxy distances
The universe consists of hundreds of billions of galaxies, and for nearby galaxies, distances are mainly measured by classical Cepheids and RR Lyrae (RR Lyr) stars.
The universe consists of hundreds of billions of galaxies, and for nearby galaxies, distances are mainly measured by classical Cepheids and RR Lyrae (RR Lyr) stars.
Astronomy
Jun 20, 2023
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As the world faces more climate variability and extremes in the face of global warming, sudden environmental changes add an extra layer of stress to food production in the United States and around the world. It is critical, ...
Agriculture
Jun 15, 2023
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35
The bright, red star Betelgeuse in the constellation Orion has shown some unexpected behavior. In late 2019 and 2020 it became fainter than we had ever seen it—at least in records going back more than a century. Briefly ...
Astronomy
Jun 12, 2023
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315
Daniel Lidar, the Viterbi Professor of Engineering at USC and Director of the USC Center for Quantum Information Science & Technology, and Dr. Bibek Pokharel, a Research Scientist at IBM Quantum, have achieved a quantum speedup ...
Quantum Physics
Jun 5, 2023
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117
Using the Nanshan One-meter Wide-field Telescope (NOWT), astronomers from China have performed a photometric survey of the old open cluster NGC 188. In result, they identified many variable stars, one of which was detected ...
A low-cost, high-value observatory with a passing resemblance to a garden shed has been set up in the grounds of the University of Bath. The observatory is proving to be a game-changing experimental tool for undergraduates ...
Astronomy
Apr 21, 2023
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49
The "Last Ice Area" north of Greenland and Canada is the last sanctuary of all-year sea ice in this time of rising temperatures caused by climate change. A new study now suggests that this may soon be over.
Earth Sciences
Mar 22, 2023
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416
Using data from NASA's Kepler spacecraft, astronomers from the Pedagogical University of Cracow, Poland, and elsewhere have detected 278 variable stars in the open cluster NGC 6791 and its surroundings. The finding was reported ...
There's something menacing about red dwarfs. Human eyes are accustomed to our benevolent yellow sun and the warm light it shines on our glorious, life-covered planet. But red dwarfs can seem moody, ill-tempered, and even ...
Astronomy
Mar 15, 2023
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96
Celestial phenomena that change with time such as exploding stars, mysterious objects that suddenly brighten and variable stars are a new frontier in astronomical research, with telescopes that can rapidly survey the sky ...
Astronomy
Mar 15, 2023
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91