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Destroyer of Worlds

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Astronomers, in addition to discovering extrasolar planets (about 500 of them currently have known orbital parameters), have detected excess, warm infrared dust emission around many stars...

It Is Within Our Grasp

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(The following article was written by Alvin Powell, Harvard University Gazette.) With a bit of luck and a new space telescope, within five years we could know the answer to a question tha...

Where do Supernovae Come From?

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Supernovae, the explosive deaths of massive stars, are among the most momentous events in the cosmos because they disburse into space all of the chemical elements that were produced insid...

CfA Will Play Major Role in Mission to "Touch" the Sun

Submitted by idfive on
Cambridge, MA When NASA’s Solar Probe Plus (SPP) launches before the end of the decade, it will carry a suite of cutting-edge scientific instruments. Only one – the Solar Wind Electrons ...

NASA's Hubble Harvests Distant Solar System Objects

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Cambridge, MA Beyond the orbit of Neptune reside countless icy rocks known as trans-Neptunian objects (TNOs). One of the biggest, Pluto, is classified as a dwarf planet. The region also ...

Making Massive Stars

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Massive stars -- those with more than about eight times the mass of the sun -- are arguably the most important actors in the universe. Much hotter and more luminous than the sun, they liv...

Ripples in the Cosmic Background

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The universe was created 13.73 billion years ago in a blaze of light -- the big bang. We also think that, about 380,000 years later, after matter (mostly hydrogen atoms) had cooled enoug...

Spitzer Finds a Flavorful Mix of Asteroids

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New research from NASA's Spitzer Space Telescope reveals that asteroids somewhat near Earth, termed near-Earth objects, are a mixed bunch, with a surprisingly wide array of compositions. ...
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