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The ages of sun-like stars

The mass of a star is perhaps its most significant feature. It determines how brightly it shines (a star ten times more massive than the Sun will, during its normal lifetime, shine about forty million times brighter than ...

dateFeb 06, 2015 in Astronomy
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Cool, dim dwarf star is magnetic powerhouse

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have discovered that a dim, cool dwarf star is generating a surprisingly powerful magnetic field, one that rivals the most intense magnetic regions ...

dateNov 19, 2015 in Astronomy
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Earth's orbit around the sun

Ever since the 16th century when Nicolaus Copernicus demonstrated that the Earth revolved around in the Sun, scientists have worked tirelessly to understand the relationship in mathematical terms. If this bright celestial ...

dateNov 24, 2014 in Space Exploration
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How are planets formed?

How did the Solar System's planets come to be? The leading theory is something known as the "protoplanet hypothesis", which essentially says that very small objects stuck to each other and grew bigger and bigger—big enough ...

dateJan 30, 2015 in Space Exploration
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