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The Breath of the Solar System's Birth
Topic: Sun
Summary: The first nitrogen and oxygen isotopic measurements of the Sun demonstrate that they are very different than the same elements on Earth. The findings come from successful results from NASA's Genesis mission.

Drop in Sun's Activity Expected
Topic: Sun
Summary: A missing jet stream, fading spots, and slower activity near the poles say that our sun is heading for a rest period even as it is acting up for the first time in years. The Sun plays a major role in maintaining the habitability of the Earth, and studying solar activity can help astrobiologists understand what is in store for life's future on our planet.

The Sun is Having a Blast
Topic: Sun
Summary: On June 7, 2011, the Sun unleashed a medium-sized solar flare, minor radiation storm and a spectacular coronal mass ejection. Soon, the ejection will deliver a glancing blow to Earth's magnetic field.

Slow Start to Solar Cycle
Topic: Sun
Summary: In 2008, sunspots all but vanished and the Sun became eerily quiet. It was the deepest solar minimum in nearly a century. Now, after three long years, the Sun is becoming active once again. Life on Earth is intricately linked to solar activity. Studying the Sun can provide valuable information about the habitability of Earth, and life's future on our planet.

Looking into the Sun's Future
Topic: Sun
Summary: NASA's Kepler mission have provided such a clear view of changes in star brightness that astronomers can now see clues about what happens inside red giant stars. The results also shed light on what could happen to the Sun in about 5 billion years.

Voyager Rolls to See Which Way the Solar Wind is Blowing
Topic: Sun
Summary: NASA's Voyager 1 spacecraft is changing its orientation in order to determine which direction the Sun's stream of charged particles banks as it approaches the edge of the Solar System. Studying the solar wind is important for astrobiologists trying to understand the nature of our system and the conditions that allow for habitable planets.

Solving the Mystery of the Spotless Sun
Topic: Sun
Summary: In 2008-2009, solar activity dropped to hundred-year lows and sunspots almost completely disappeared. Now, solar physicists have discovered where the sunspots went.

Measuring the Sun's Role on Climate
Topic: Sun
Summary: Scientists have made a major step forward in accurately determining the amount of energy that the Sun provides to Earth. Much of Earth's biosphere depends on the Sun's life-giving energy. Studying the links between the Sun and life on Earth is essential in understanding life's future on our planet.

Streams of the Sun
Topic: Sun
Summary: Contrary to popular belief, the number of sunspots visible on the Sun may not be an indication of changes in the Sun's impact on Earth. Last year, the Earth was bombarded with high levels of solar energy - even though the Sun was in a quiet phase of its 11-year cycle and sunspots had virtually disappeared.

Are Sunspots Disappearing?
Topic: Sun
Summary: The Sun is in the deepest solar minimum in nearly a century. Some observers are starting to wonder, are sunspots disappearing? Sunspots can have profound effects on the Earth's climate as well as human and satellite missions in orbit.

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