News tagged with rocky planet

Measuring the mass of a Mars-size exoplanet

Determining the size of an Earth-size exoplanet by the amount of starlight it blocks hundreds of light-years away once was the realm of science fiction. Measuring the mass of such a small planet based on ...

dateJun 18, 2015 in Astronomy
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Jupiter's movements made way for Earth

There's something about our solar system that appears to be unusual. For some reason, most of our bigger planets are far away from our host star, while closer in are smaller, rocky worlds, including Earth ...

dateJun 23, 2015 in Astronomy
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