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Sun

A young woman is sitting at the beach of Lake Constance on April 17, 2007, near Lindau, Germany. The un-seasonably warm weather has heralded the start to what weather forecasters predict will be a record breaking summer. (Photo by Johannes Simon/Getty Images)

Skin Cancer Rate In Marin County Alarmingly Higher Than Rest Of California

Marin County is known for sun, but residents there may be paying for that exposure.

07/23/2014

stardate

StarDate 7/17/2014: The Night Of The Living Dead Stars

A white dwarf sounds harmless enough. It’s the small, dead core of a once-normal star like the Sun. But to a close companion star, a white dwarf is anything but harmless.

07/17/2014

stardate

StarDate 7/9/2014: A Glittering Test Subject In The Summer Sky

Over the decades, when astronomers wanted a subject for testing new techniques for studying the stars, they frequently turned to Vega, the brightest star of Lyra, the harp.

07/09/2014

A stream of solar wind flowing from this minor coronal hole should reach Earth on July 9-10. (Credit: SDO/AIA)

Massive Solar X-Ray Eruption Hits Earth, Potentially Disrupts GPS And Airplane, Ship Communications

A massive solar flare flooded the sunlit portion of the planet Tuesday morning with X-rays powerful enough to disrupt GPS navigation, and airplane and maritime communication for several minutes.

07/08/2014

stardate

StarDate: Feeling the Heat

FROM THE UNIVERSITY OF TEXAS McDONALD OBSERVATORY, AS HEARD ON KCBS RADIO WEEKDAYS @ 9:52 A.M., 7:35 P.M. & 2:52 A.M. STARDATE 07/04/2014: The Sun may feel bigger and brighter during the hot days of […]

07/04/2014

stardate

StarDate: Moon and Venus— A Brilliant Morning Encounter

Early risers are in for a skywatching treat at first light Tuesday morning — a close pairing of the crescent Moon and the planet Venus. Venus looks like a dazzling star just to the left or upper left of the Moon.

06/23/2014

stardate

StarDate: Summer Solstice— Plotting The Sun’s Motions

Summer arrives tomorrow in the northern hemisphere, as the Sun stands farthest north for the entire year. It’s also the longest day day of the year with 14 hours of daylight in the U.S.

06/20/2014

A solar flare is seen erupting from the sun. (Photograph by: NOAA/National Weather Service's Space Weather Prediction Center, Getty Images)

Solar Flare Shockwave May Disrupt Earth’s Satellite Communications

NASA has reported that a shockwave from a massive solar flare will hit Earth on Friday, possibly knocking out communications and causing disruptions to satellites.

06/13/2014

stardate

StarDate 5/28/2014: Tracking Down False Comets

For an 18th-century astronomer, the quickest way to fame and fortune was discovering comets — the big iceballs that grow long, beautiful tails when they come close to the Sun.

05/28/2014

stardate

StarDate 4/21/2014: The Emptiness Between The Stars

It’s lonely out here in the galactic suburbs. The closest neighbors are light-years away — distances that are truly astounding.

04/21/2014

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