White dwarfs comprise a class of faint stars representing the endpoint of the evolution of intermediate- and low-mass stars. The mass of a white dwarf is the order of that of the sun, but a radius comparable to that of the ...
Astronomy
Feb 6, 2023
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Astronomers have directly measured the mass of a dead star using an effect known as gravitational microlensing, first predicted by Albert Einstein in his General Theory of Relativity, and first observed by two Cambridge astronomers ...
Astronomy
Feb 2, 2023
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Using NASA's Transiting Exoplanet Survey Satellite (TESS), astronomers have discovered a peculiar cataclysmic variable star. The newly found system, designated SDSS J134441.83+204408.3 (or J1344 for short) is a highly asynchronous, ...
Using the Southern African Large Telescope (SALT), an international team of astronomers has discovered eight new very hot white dwarf and pre-white dwarf stars with effective temperatures over 100,000 K. The finding is reported ...
A Dartmouth professor's images of the explosive aftermath from the collision of two dying stars could help scientists better understand this rare type of astronomical event—and may finally confirm the identity of a brilliant ...
Astronomy
Jan 13, 2023
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It was one of the first famous images revealed by the James Webb Space Telescope earlier this year: a stunning shroud of gas and dust illuminated by a dying star at its heart.
Astronomy
Dec 11, 2022
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87
The mysteries of the cosmos continue to amaze astronomers, and with each new observation comes a chance to deepen—or upend—our understanding of the universe.
Astronomy
Dec 8, 2022
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This glittering group of stars, shining through the darkness like sparks left behind by a firework, is NGC 2660 in the constellation Vela, best viewed in the southern sky. NGC 2660 is an open cluster, a type of star cluster ...
Astronomy
Nov 29, 2022
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45
A team of astronomers have found that planet formation in our young solar system started much earlier than previously thought, with the building blocks of planets growing at the same time as their parent star.
Astronomy
Nov 14, 2022
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380
Using data from various space telescopes, astronomers have investigated a variable X-ray source known as SWIFT J0503.7-2819. Results of the study suggest that this source is an intermediate polar. The finding was detailed ...
