News tagged with astronomical journal

Galaxies show appetite for growth

The extent to which galaxies consume one another has been revealed in research. Findings from the study help to explain how galaxies such as the Milky Way were formed.

dateAug 04, 2015 in Astronomy
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A close call of 0.8 light years

A group of astronomers from the US, Europe, Chile and South Africa have determined that 70,000 years ago a recently discovered dim star is likely to have passed through the solar system's distant cloud of comets, the Oort ...

dateFeb 17, 2015 in Astronomy
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New star catalog reveals unexpected 'solar salad'

( —An Arizona State University alumnus has devised the largest catalog ever produced for stellar compositions. Called the Hypatia Catalog, after one of the first female astronomers who lived in approximately 350 ...

dateAug 19, 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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Dating our galaxy's dormant volcano

( —A dormant volcano—a supermassive black hole—lies at the heart of our galaxy. Fresh evidence suggests that it last erupted two million years ago.

dateSep 23, 2013 in Astronomy
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