magnetic field

How Do We Terraform Mars?

by Fraser Cain July 21, 2014

If we really want to live on Mars, we’re going to need to do a complete renovation. We’ll need to thicken the atmosphere, warm the planet, and get the liquid water flowing. What’ll it take? Fraser Cain on Google+

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Move Over, Gravity: Black Hole Magnetic Fields May Have Powerful Pull

by Elizabeth Howell June 4, 2014

It’s oft-repeated that black holes are powerful gravity wells, because they represent a dense concentration of matter in one location. But what about their magnetic fields? A new study suggests that this force could be at least as strong as gravity in supermassive black holes, the singularities that lurk in the center of many galaxies. […]

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Spectacular Aurora Sneaks in Quietly, Rages All Night

by Bob King May 4, 2014

Expect the unexpected when it comes to northern lights. Last night beautifully illustrated nature’s penchant for surprise. A change in the “magnetic direction” of the wind of particles from the sun called the solar wind┬ámade all the difference.┬áMinor chances for auroras blossomed into a spectacular, night-long storm for observers at mid-northern latitudes.

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‘Will We Soon Find Ourselves Back In The Stone Age?’ Why Swarm Is Watching Our Magnetic Field

by Elizabeth Howell November 25, 2013

A satellite triplet was born last week. The European Space Agency’s Swarm constellation flew into space on Friday (Nov. 22) on a quest to understand more about the Earth’s magnetic field. Around the same time, ESA put out a few videos explaining why the magnetic field is important. This one explains that the magnetic field […]

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Voyager 1: Is It In or Is It Out?

by Jason Major August 15, 2013

Nearly 18.7 billion kilometers from Earth — about 17 light-hours away — NASA’s Voyager 1 spacecraft is just about on the verge of entering interstellar space, a wild and unexplored territory of high-energy cosmic particles into which no human-made object has ever ventured. Launched in September 1977, Voyager 1 will soon become the first spacecraft […]

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