Tag Archives: Earth

Subsurface oceans everywhere and the possible pervasiveness of life

Well, it now looks like Ganymede, one of Jupiter’s moons, has a subsurface ocean. Ganymede’s great distinction among moons – apart from its size – is that it has its own magnetic field. Hubble has managed to track that field’s … Continue reading

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Comet Siding Spring: A Close Encounter with Mars

In case you haven’t heard yet, there’s a comet headed for Mars.  It will pass pretty close, close enough for the various orbiters we have in there to get pictures, and for them to be in a little bit of … Continue reading

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The real goal and challenge of establishing off-world colonies

David Warmflash (a very cool name) has a post up at Discovery looking at the issues with establishing off world colonies: Forget Mars. Here’s Where We Should Build Our First Off-World Colonies. The collective space vision of all the world’s countries … Continue reading

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The evolutionary paradox of sex

Megan Scudellar has a fascinating article up at The Scientist Magazine on the mystery of why sexual reproduction evolved to be so pervasive: The Sex Paradox | The Scientist Magazine®. Sarah “Sally” Otto was sitting in a lab meeting of evolutionary … Continue reading

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Cosmic rays becoming an increasing problem for microchips. Threat to Moore’s Law?

When I first saw the title of this article, I thought it might be an alarmist piece of some kind about passenger safety from higher radiation doses while in the air, but it’s actually about a broader and more serious … Continue reading

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xkcd: Surface areas in the solar system

My initial reaction to this was, where are the gas giants?  Then I woke up and realized this was about definable surfaces.  (Click through for full sized version.) Note the tiny size of Pluto in relation to moons like The … Continue reading

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New NASA images highlight U.S. air quality improvement

As something of a balance against the environmental issues we’ve been discussing, here is an encouraging sign of progress: New NASA images highlight U.S. air quality improvement — ScienceDaily. Anyone living in a major U.S. city for the past decade may have … Continue reading

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