magnetic field
Move Over, Gravity: Black Hole Magnetic Fields May Have Powerful Pull
It's oft-repeated that black holes are powerful gravity wells, because they represent a dense concentration of matter in one location.…
Spectacular Aurora Sneaks in Quietly, Rages All Night
Expect the unexpected when it comes to northern lights. Last night beautifully illustrated nature's penchant for surprise. A change in…
‘Will We Soon Find Ourselves Back In The Stone Age?’ Why Swarm Is Watching Our Magnetic Field
A satellite triplet was born last week. The European Space Agency's Swarm constellation flew into space on Friday (Nov. 22)…
Voyager 1: Is It In or Is It Out?
Nearly 18.7 billion kilometers from Earth -- about 17 light-hours away -- NASA's Voyager 1 spacecraft is just about on…
Weekly Space Hangout – August 9, 2013
Gather round the internets for another episode of the Weekly Space Hangout. Where our experienced team of journalists, astronomers and…
An Exoplanet’s Auroral Engine
Located 880 light-years away, a massive gas giant called CoRoT-2b orbits its star at a mere 2 million miles –…
Regular Solar Cycle Could Be Going on Hiatus
[/caption] Are we headed into the 21st century version of the Maunder Minimum? Three researchers studying three different aspects of…
Comet Elenin: Just Passing By
[/caption] It starts out innocently enough: a small speck against a field of background stars, barely noticeable in the image…
Helmholtz Coil
[/caption]A magnetic field is a pretty awesome thing. As a fundamental force of the universe, they are something without which,…
Magnetic Fields on O-Class Stars
[/caption] The primary method by which astronomers can measure magnetic field strength on stars is the Zeeman effect. This effect…