These would have been made around the stars that were the ancestors of our Sun, Dr Russell said.
The fact that different bodies in the solar system change their relative positions as they orbit the sun will, Dr Hooke concedes, complicate routing a bit: when the earth and Mars are on opposite sides of the sun, for example, it might be best to send e-mail via Venus.
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But, based on the limited numbers of planets found so far, Dr Boss has estimated that each Sun-like star has on average one "Earth-like" planet.
Dr. SCHAWINSKI: And so our sun is at least a second generation, if not the third generation star.
"What we do know is that the adults are sun lovers, " said Dr Steven Compton from Leeds University.
"Imagine you are below the shark, the shark is swimming and you have the light from the Sun coming down, " explained Dr Julien Claes, a shark biologist from the Catholic University of Louvain in Belgium, and the lead author of the study.
Participants were under 55 to assure that aging effects were the result of sun exposure, not the natural aging process, Dr. Green said.
In a forthcoming paper in Icarus, however, Dr Adams advances another intriguing possibility: the earth could desert the sun and team up with another star.
In A Study in Scarlet, the first-ever Holmes adventure, Dr. Watson realizes that Holmes was unaware that the earth orbits the sun.
Antioxidants applied topically have been shown to protect against sun damage that can cause wrinkles and changes in skin pigmentation, Dr. Alster says.
Just a stroll down from Dr Zalloua's genetic lab, the Mediterranean Sea shimmers in the evening sun, its waves splashing over the ancient harbour of Byblos.
Dr. THOMMES: Well, as far as we know, it - this - our sun goes back to about four and half billion years, and I don't know of any indication that we ever swapped suns with anybody, but it's...
Dr. Costarelis advises his patients to eat a nutrient-rich diet and stay out of the sun, because UV rays damage hair.
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The reason the eye sees the flash as green, according to Dr Young, is that someone waiting to watch it will usually have been staring at the setting sun for several minutes.
Dr Dacke had previously shown that dung beetles were able to keep a straight line by taking cues from the Sun, the Moon, and even the pattern of polarised light formed around these light sources.
Dr Russell is interested in tiny grains which should reveal new information about the material that came together to form the Sun and planets.
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