News tagged with planets

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The technological path to Mars

Can the just-flown Orion spacecraft truly get us to Mars? NASA has been portraying the mission as part of the roadmap to the Red Planet, but there are observers who say a human landing mission is an unrealistic ...

Dec 11, 2014
4.8 / 5 (6) 2

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 ...

Dec 11, 2014
3.8 / 5 (14) 0

Can binary terrestrial planets exist?

The possible existence of Earth-like binary planets is being described today at the American Astronomical Society's Division for Planetary Sciences meeting in Tucson, AZ. Two bodies, each of mass similar ...

Dec 03, 2014
4.5 / 5 (37) 17

What percent of Earth is water?

The Earth is often compared to a majestic blue marble, especially by those privileged few who have gazed upon it from orbit. This is due to the prevalence of water on the planet's surface. While water itself ...

Dec 02, 2014
4.9 / 5 (8) 8