Nearly half the stars in our galaxy are solitary like the sun. The other half comprises stars that circle other stars, in pairs and multiples, with orbits so tight that some stellar systems could fit between Earth and the ...
Astronomy
Oct 5, 2022
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Astronomers have observed the brightest flash of light ever seen, from an event that occurred 2.4 billion light years from Earth and was likely triggered by the formation of a black hole.
Astronomy
Oct 16, 2022
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94
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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314
The search for exoplanets—planets that orbit stars located beyond the borders of our solar system—is a hot topic in astrophysics. Of the various types of exoplanets, one is hot in the literal sense: hot Jupiters, a class ...
Astronomy
Aug 14, 2023
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161
An international scientific team led by researchers at the Instituto de Astrofísica de Canarias (IAC) has discovered the presence of two planets with Earth-like masses in orbit around the star GJ 1002, a red dwarf not far ...
Astronomy
Dec 15, 2022
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967
Astronomers have revealed new evidence about the properties of the giant bubbles of high-energy gas that extend far above and below the Milky Way galaxy's center.
Astronomy
May 8, 2023
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268
They are mysterious, exciting and inescapable—black holes are some of the most exotic objects in the universe. With gravitational-wave detectors, it is possible to detect the chirp sound that two black holes produce when ...
Astronomy
Jul 31, 2023
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888
They announced the Nobel prizes this week! But did any of the recipients teach an AI to play Street Fighter? Here are a few of this week's stories not yet lauded by international committees of scientists, but which we thought ...
After a three-year hiatus, scientists in the U.S. have just turned on detectors capable of measuring gravitational waves—tiny ripples in space itself that travel through the universe.
Astronomy
May 23, 2023
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59
Infrared measurements of TRAPPIST-1 c indicate that it is probably not as Venus-like as once imagined.
Planetary Sciences
Jun 19, 2023
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