The first stars of the universe were very different than the stars we see today. They were made purely of hydrogen and helium, without heavier elements to help them generate energy in their core. As a result, they were likely ...
Astronomy
Jun 26, 2023
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Near the center of the Milky Way Galaxy sits an immense object that astronomers call Sagittarius A*. This "supermassive" black hole may have grown in tandem with our galaxy, and it's not alone. Scientists suspect that similar ...
Astronomy
Jun 20, 2023
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Until recently, there were only ten known stars on trajectories that will allow them to escape the Milky Way galaxy, thrown astray by powerful supernova explosions. A new study using data from ESA's Gaia survey this June ...
Astronomy
Jun 13, 2023
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Using the Hard X-ray Modulation Telescope (HXMT) and the Neutron star Interior Composition Explorer (NICER), astronomers from China and India have observed two X-ray binaries known as GX 339−4 and EXO 1846−031. Results ...
Using technology similar to that found in smartphone cameras, NASA scientists are developing upgraded sensors to reveal more details about black hole outbursts and exploding stars—all while being less power hungry and easier ...
Astronomy
Jun 6, 2023
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An international team of astronomers reports the detection of a new, hot-dust-obscured galaxy (DOG). The galaxy, which received designation WISE J190445.04+485308.9, was found at a relatively low redshift of 0.415, which ...
Astrophysicists from the Hebrew University of Jerusalem published a new theoretical model that solves the mystery of the formation of early massive galaxies in the universe, in Monthly Notices of the Royal Astronomical Society. ...
Astronomy
May 31, 2023
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A team of astronomers has claimed that observations of a sun-like star orbiting a small black hole might actually be the indication of something far more exotic—the existence of a boson star, a star composed entirely of ...
Astronomy
May 15, 2023
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59
A new NASA animation highlights the "super" in supermassive black holes. These monsters lurk in the centers of most big galaxies, including our own Milky Way, and contain between 100,000 and tens of billions of times more ...
Astronomy
May 2, 2023
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Though we live in a vast three-dimensional universe, celestial objects seen through a telescope look flat because everything is so far away. Now for the first time, astronomers have measured the three-dimensional shape of ...
Astronomy
Apr 13, 2023
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