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Latest THEMIS Stories

16c2290e13757a1831b1676900514bc4
2008-04-02 09:15:00

To better understand substorms, scientists in Europe and North America are studying them from space using the Time History of Events and Macroscale Interactions during Substorms (THEMIS) satellites launched by NASA in 2007 and from the ground using a network of all-sky cameras.

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2008-03-21 00:10:00

What are the signs of spring? They are as familiar as a blooming Daffodil, a songbird at dawn, a surprising shaft of warmth from the afternoon sun. And, oh yes, don't forget the aurora borealis.

534848e86d601f0a5a1af4eb4631056c
2008-03-07 10:05:00

Imagine living on a planet where Northern Lights fill the heavens at all hours of the day. Around the clock, even in broad daylight, luminous curtains shimmer and ripple across the sky. News flash: Astronomers have discovered such a planet. Its name is Earth.

1735f47f60718b640b6f17e0d254d419
2008-03-04 12:50:00

What are the signs of spring? They are as familiar as a blooming daffodil, a songbird at dawn, a surprising shaft of warmth from the afternoon sun. And, oh yes, don’t forget the aurora borealis.

65a9952689f48fef4be156d72ce44bcf1
2007-12-12 07:25:00

NASA's fleet of THEMIS spacecraft, launched less than 8 months ago, has made three important discoveries about spectacular eruptions of Northern Lights called "substorms" and the source of their power.

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2007-09-11 14:10:31

Cluster data has helped provide scientists with a new view of magnetospheric processes, challenging existing theories about magnetic substorms that cause aurorae and perturbations in GPS signals.

ca623fb0cc95c1ec8a025ded175144461
2007-04-25 00:45:00

Violent solar events, like flares and coronal mass ejections, are the hurricanes of space weather, capable of causing havoc with satellites, power grids, and radio communication, including the Global Positioning System. The sun is heading into a new season of turbulent solar activity.

5cf502d3461217eca2c2d4b553b360db1
2007-04-12 16:48:40

Cluster is providing new insights into the working of a ‘space tsunami’ that plays a role in disrupting the calm and beautiful aurora, or northern lights, creating patterns of auroral dances in the sky.

3b2a620699baa5f4ee4d9b7b3d8bc0b11
2007-02-17 18:00:00

Five science satellites blasted off on a single rocket into a golden sunset Saturday on a mission to figure out the source of powerful geomagnetic substorms in the Earth's atmosphere. The launch at 6:01 p.m.

656273ccb51028e0e25063a64362640a1
2007-02-16 18:55:00

Strong upper level winds forced NASA to abort plans to launch five satellites on a single rocket Friday from the Cape Canaveral Air Force Station, officials said.


Word of the Day
chickabiddy
  • A young chicken: also used as a pet name for children.
The word 'chickabiddy' may come from 'chick' plus 'biddy', a name used in calling a hen or chicken.
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