PASADENA, Calif.–A team of astronomers led by Carl Grillmair of the California Institute of Technology has discovered some puzzling things about a Jupiter-sized planet that passes in front of a nearby ...

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Astronomers have discovered the first radio signals from a unique category of dying stars, called Type Ibn supernovae, and ...

Observations of nearby red dwarf stars reveal rare carbon and oxygen isotopes, offering direct evidence of stellar nucleosynthesis and the chemical evolution of the Milky Way.

Using the Baryons Oscillation Spectroscopic Survey (BOSS) spectrograph, astronomers have discovered five new carbon-enhanced ...

Astronomers recently released a new image of the binary star system Eta Carinae's full spectrum, taken from deep in Chile's Atacama Desert. The image was captured with the newly installed SOAR ...