
Using oxygen as a tracer of galactic evolution
A new study led by University of California, Riverside astronomers casts light on how young, hot stars ionize oxygen in the early universe and the effects on the evolution of galaxies through time. ... more
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Stellar ages in seconds
Living for billions and billions of years, it is no simple task to figure out how old a star is. Fortunately, despite appearances, earthquake-like pulsations cause stars like our Sun to vibrate, imp ... more
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Russia launches dozens of drones as Ukraine claims 'important success'
Russian jets violate Estonian air space in 'brazen intrusion'
U.S. defense in free fall
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Discovery of an extragalactic hot molecular core
Astronomers have discovered a 'hot molecular core,' a cocoon of molecules surrounding a newborn massive star, for the first time outside our Galaxy. The discovery, which marks the first important st ... more
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Discovery: A new form of light
Glow-in-the-dark stickers, weird deep-sea fish, LED lightbulbs - all have forms of luminescence. In other words, instead of just reflecting light, they make their own. Now a team of scientists from ... more
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Observing the birth of quasiparticles in real time
The concept of quasiparticles is a powerful tool to describe processes in many-body quantum systems, such as solid-state materials. For example, when an electron moves through a solid, it generates ... more
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