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How Did Distant Quasars Grow?
Today’s paper presents a systematic study of accretion physics of high redshift quasars.
It’s alive! Mars may continue to periodically spew volcanic materials
Properties of an atypical geologic feature on Mars indicate a volcanic eruption occurred as recent as a few tens of thousands of years ago.
Place your bets: LCDM vs. El Gordo
In the most anticipated fight of the cosmic epoch, find out whether the titan cluster El Gordo is poised to defeat our reigning cosmological model.
Pumping Aluminum: How Massive Stars Bulk Up Galactic Metal Content
Massive stars live fast and die young, making metals along the way.
UR: Searching for Laser Signals in Optical Stellar Spectra
Using new observations from the UVCANDELS survey, a possible link between recent star formation, merger frequency, and the size-mass evolution of massive, quiescent galaxies is investigated.
Did the Moon’s Ancient Magnetic Field Help Shield the Infant Earth?
A team of scientists led by Dr. James Green at NASA’s Headquarters in Washington, DC, have shown that the Earth and Moon may once have shared a protective magnetic shield that sheltered the young Earth’s atmosphere from erosion by the solar wind.
Beyond astro-ph
Astronomy beyond the research
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Navigating careers in astronomy
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