Chris Rasmussen

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To avoid catching a cold, researchers prescribe a good night's sleep

To ward off a cold, ditch the vitamin C and get some shut-eye instead.<p>Thanks to the efforts of 164 intrepid adults who allowed investigators to drop particles of rhinovirus into their noses and conduct detailed examinations of their nasal cavities, researchers have determined that sleeping for only …

Sleep

NASA Probes How Mars Became the Red Planet

NASA is sifting through new clues that could yield insights about how ancient Mars went from a planet with surface water to the dry, Red Planet it is …

NASA is sending the probe that took pictures of Pluto to the far reaches of our solar system

An astronomer's dream, these images provided NASA with the closest and most detailed look at Pluto they have ever seen.<p>Last week, NASA compiled the best of these images in a motion video that showcases the probe's approach, pass-by, and departure from Pluto.<p>But as the agency continues to analyze …

Space

Has Stephen Hawking solved the mystery of black holes?

<b>(CNN) —</b> Black holes have a way of capturing our imagination. That's why when Stephen Hawking recently talked about them the media went wild.<p>But what was he really saying? Was it a breakthrough moment?<p>At the Hawking Radiation Conference organized by Laura Mersini-Houghton, a professor of physics at …

Universe

Russia is Returning to the Moon, Paving the Way for a Crewed Landing

Luna 25 is a test-bed for the real thing: a south pole moon base.<p>In recent years, Roscosmos has largely concentrated on crewed missions, struggling to get a spaceprobe to its intended destination. But Luna 25 hopes to change that. The moon probe, set to launch in 2024, will mark a return to the …