News tagged with gravity

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How strong is the gravity on Mars?

The planet Mars shares numerous characteristics with our own. Both planets have roughly the same amount of land surface area, sustained polar caps, and both have a similar tilt in their rotational axes, affording each of ...

dateDec 11, 2014 in Space Exploration
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Is dark energy static or dynamic?

(Phys.org)—While hypothesized dark energy can explain observations of the universe expanding at an accelerating rate, the specific properties of dark energy are still an enigma. Scientists think that dark energy could take ...

dateNov 12, 2012 in General Physics feature
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What if we dug a tunnel through the Earth?

Long distance air travel sucks. Anyone who's ever had to sit on an airplane for 17 hours, enduring screaming babies, terrible internet, and the constant threat of deep vein thrombosis knows how bad it sucks. I know, I know, ...

dateNov 30, 2015 in Space Exploration
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Did we need the moon for life?

For all we know, Earth is the only place in the Universe where life appeared. This makes the mystery of our existence even more puzzling. What were all the factors required to bring about the first lifeforms on our planet, ...

dateNov 23, 2015 in Space Exploration
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What is tidal locking?

The moon is tidally locked to the Earth, which means that it always shows one face to our planet. In fact, this is the case for most the large moons in the solar system. What's the process going on to make this happen?

dateNov 17, 2015 in Space Exploration
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