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Do stars move?

We know that Earth is not the center of the universe—let alone the Solar System—but looking at the sky, it's easy to get confused. Stars appear to be rising and setting, as well as the planets, Moon and ...

dateFeb 10, 2015 in Astronomy
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Helicopter drones on Mars

NASA's Jet Propulsion Laboratory recently announced that it is developing a small drone helicopter to scout the way for future Mars rovers. Why would Mars rovers need such a robotic guide? The answer is that ...

dateMar 18, 2015 in Space Exploration
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'Pale blue dot' images turn 25

Valentine's Day is special for NASA's Voyager mission. It was on Feb. 14, 1990, that the Voyager 1 spacecraft looked back at our solar system and snapped the first-ever pictures of the planets from its perch ...

dateFeb 16, 2015 in Space Exploration
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What is Mars made of?

For thousands of years, human beings have stared up at the sky and wondered about the Red Planet. Easily seen from Earth with the naked eye, ancient astronomers have charted its course across the heavens ...

dateFeb 26, 2015 in Space Exploration
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