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Our Star
The sun is a star, a hot ball of glowing gases at the heart of our solar system. Its influence extends far beyond the orbits of distant Neptune and Pluto. Without the sun's intense energy and heat, there would be no life on Earth. And though it is special to us, there are billions of stars like our sun scattered across the Milky Way galaxy.

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Solar Eclipse over the USA
Solar Eclipse over the USA
Mark your calendar. On Sunday, May 20th, the sun is going to turn into a ring of fire. It's an annular solar eclipse--the first one in the USA in almost 18 years.Read More...
Comet Corpses in the Solar Wind
Comet Corpses in the Solar Wind
A paper published in today's issue of Science raises an intriguing new possibility for astronomers: unearthing comet corpses in the solar wind. The new research is based on dramatic images of a comet disintegrating in the sun's atmosphere last July.Read More...
Comet Lovejoy Plunges into the Sun ... and Survives
Comet Lovejoy Plunges into the Sun ... and Survives
Sungrazing Comet Lovejoy has shocked astronomers by surviving its "death plunge" into the sun. Must-see movies of the comet's passage through the sun's atmosphere are featured in today's story from Science@NASA.Read More...
Basics of the Analysis Procedure
Basics of the Analysis Procedure
The instruments employed at UCLA, UCSD, and Open University differ in many respects, but each has a method to free the solar oxygen atoms from the collection material, and each uses a mass spectrometer to separate and count the isotopes.Read More...
The Long, Slow Clean-Up
The Long, Slow Clean-Up
The Genesis mission brought important new evidence to scientists working to understand how the solar system formed, but it also brought an unprecedented challenge.Read More...
One Step Closer to Earth's Genesis
One Step Closer to Earth's Genesis
Kevin McKeegan's announcement at the 2008 Lunar and Planetary Science Conference that the pattern of oxygen isotopes on the Sun differs greatly from that of Earth took many planetary scientists by surprise.Read More...
The Sun Under Lock and Key
The Sun Under Lock and Key
Where do you think you would find the world's most valuable collection? You can make an awfully good argument for the Astromaterials Curation Labs at Johnson Space Center. That is where NASA keeps the Genesis solar wind samples, and much more.Read More...
The Big Question -- The Reason for the Genesis Mission
The Big Question -- The Reason for the Genesis Mission
Where did the world come from? An immense gas cloud, peppered with atoms made by stars, squeezed itself together so tightly that its center ignited into a nuclear furnace and became our sun. The remaining bits and pieces of the cloud, known as ...Read More...
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Previous
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Solar Eclipse over the USA
Solar Eclipse over the USA
Mark your calendar. On Sunday, May 20th, the sun is going to turn into a ring of fire. It's an annular solar eclipse--the first one in the USA in almost 18 years.Read More...
Comet Corpses in the Solar Wind
Comet Corpses in the Solar Wind
A paper published in today's issue of Science raises an intriguing new possibility for astronomers: unearthing comet corpses in the solar wind. The new research is based on dramatic images of a comet disintegrating in the sun's atmosphere last July.Read More...
Comet Lovejoy Plunges into the Sun ... and Survives
Comet Lovejoy Plunges into the Sun ... and Survives
Sungrazing Comet Lovejoy has shocked astronomers by surviving its "death plunge" into the sun. Must-see movies of the comet's passage through the sun's atmosphere are featured in today's story from Science@NASA.Read More...
Basics of the Analysis Procedure
Basics of the Analysis Procedure
The instruments employed at UCLA, UCSD, and Open University differ in many respects, but each has a method to free the solar oxygen atoms from the collection material, and each uses a mass spectrometer to separate and count the isotopes.Read More...
The Long, Slow Clean-Up
The Long, Slow Clean-Up
The Genesis mission brought important new evidence to scientists working to understand how the solar system formed, but it also brought an unprecedented challenge.Read More...
One Step Closer to Earth's Genesis
One Step Closer to Earth's Genesis
Kevin McKeegan's announcement at the 2008 Lunar and Planetary Science Conference that the pattern of oxygen isotopes on the Sun differs greatly from that of Earth took many planetary scientists by surprise.Read More...
The Sun Under Lock and Key
The Sun Under Lock and Key
Where do you think you would find the world's most valuable collection? You can make an awfully good argument for the Astromaterials Curation Labs at Johnson Space Center. That is where NASA keeps the Genesis solar wind samples, and much more.Read More...
The Big Question -- The Reason for the Genesis Mission
The Big Question -- The Reason for the Genesis Mission
Where did the world come from? An immense gas cloud, peppered with atoms made by stars, squeezed itself together so tightly that its center ignited into a nuclear furnace and became our sun. The remaining bits and pieces of the cloud, known as ...Read More...
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