Hubble announces discovery of other galaxies, December 30, 1924Jessica MacNeil
B. The galaxies. C. The signatures. D. The astronomers.24. What do we know about the massive star? D A. It was once clearly observed. B. It experienced a temporary change. C. It could only be traced with the VLT. D. It evidently existed in the distant galaxy.25. Which of the ...
If the supernova explosion is stronger on one side, it can kick the pulsar entirely out of the supernova remnant (some astronomers call this “getting a birth kick”). We know such kicks happen because we see a number of young supernova remnants in nearby galaxies where the pulsar is to...
Astronomy (from Greek: ἀστρονομία) is a natural science that studies celestial objects and phenomena. It uses mathematics, physics, and chemistry in order to explain their origin and evolution. Objects of interest include planets, moons, stars, nebulae, galaxies, and comets. Relev...
of its member galaxies, the luminosity of the extended X-ray emission, and the high stellar mass content all point to a collapsed dark matter halo with total mass 10^14 M⊙, making it the most distant X-ray detected...
“There are black holes a little heavier than our sun that are like ants or spiders—they’re hard to spot, but kind of everywhere throughout the universe. Then you’ve got supermassive black holes that are like Godzilla in the centers of galaxies tearing things up, and we can see them...
The LAMOST survey, capable of taking 4,000 spectra in a single exposure, has released spectra for more than 10 million stars, approximately 220,000 galaxies, and some 71,000 quasars, twice as large as the spectra obtained from other ground-based sky survey telescopes put together. ...
The LAMOST survey, capable of taking 4,000 spectra in a single exposure, has released spectra for more than 10 million stars, approximately 220,000 galaxies, and some 71,000 quasars, twice as large as the spectra obtained from other ground-based sky survey telescopes put together. ...
When LRDs were first discovered, some suggested that cosmology was “broken.” If all of the light coming from these objects was from stars, it implied that some galaxies had grown so big, so fast, that theories could not account for them. ...
Stars and stellar populations in Milky Way and the nearby galaxies T. Sivarani Smitha Subramanian Bharat Kumar Yerra Journal of Astrophysics and Astronomy (2025) Impacts of Compression on the Ground and Low-Lying Excited Doublet States of Plasma-Embedded Lithium Atom Salah Doma Gamal Roston ...