News tagged with astronomer

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Finding hints of gravitational waves in the stars

Scientists have shown how gravitational waves—invisible ripples in the fabric of space and time that propagate through the universe—might be "seen" by looking at the stars. The new model proposes that a star that oscillates ...

dateSep 22, 2014 in Astronomy
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Evidence of a local hot bubble carved by a supernova

I spent this past weekend backpacking in Rocky Mountain National Park, where although the snow-swept peaks and the dangerously close wildlife were staggering, the night sky stood in triumph. Without a fire, the stars, a few ...

dateJul 30, 2014 in Astronomy
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Ultra-deep astrophoto of the Antenna Galaxies

You might think the image above of the famous Antenna Galaxies was taken by a large ground-based or even a space telescope. Think again. Amateur astronomer Rolf Wahl Olsen from New Zealand compiled a total of 75 hours of ...

dateJul 24, 2014 in Astronomy
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Sun-like stars reveal their ages

( —Defining what makes a star "Sun-like" is as difficult as defining what makes a planet "Earth-like." A solar twin should have a temperature, mass, and spectral type similar to our Sun. We also would expect it ...

dateJul 10, 2014 in Astronomy
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Merging galaxies illuminate the cosmic food chain

( —Scientists studying a 'twin' of the Milky Way have used the W. M. Keck Observatory and Subaru Observatory to accurately model how it is swallowing another, smaller galaxy. Their findings have opened the way ...

dateJul 01, 2014 in Astronomy
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