Astronomers Detect Ancient Signal from First Stars in Universe

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Astronomers Detect Ancient Signal from First Stars in Universe

For the first time, astronomers have detected a signal from stars emerging in the early universe. Using a radio antenna not much larger than a refrigerator, the researchers discovered that ancient suns were active within 180 million years of the Big Bang. The astronomers, from Arizona State University (ASU), the Massachusetts Institute of Technology (MIT) […]

Spectrum of Life: Nonphotosynthetic Pigments Could be Biosignatures of Life on Other Worlds

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Spectrum of Life: Nonphotosynthetic Pigments Could be Biosignatures of Life on Other Worlds

To find life in the universe, it helps to know what it might look like. If there are organisms on other planets that do not rely wholly on photosynthesis — as some on Earth do not — how might those worlds appear from light-years away? That’s among the questions University of Washington doctoral student Edward […]