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Sunquakes Reveal the Solar Furnace

Most people are familiar with the fact that sensitive instruments known as seismographs can detect earthquakes taking place many hundreds or thousands of miles away. By studying the waves from these tremors, scientists can find out about the conditions deep inside our rocky planet.

In the same way, astronomers are now able to measure millions of sound waves that propagate throughout the Sun, causing it to vibrate or ring like a bell. This technique, known as helioseismology, is the solar equivalent of terrestrial seismology.

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Imaging the Invisible
IMAGING THE INVISIBLE: A NEW LOOK AT SPACE WEATHER How is it possible to image tiny particles that are normally invisible? What happens to our planet and its... More
Last updated on Friday, 16 April 2010 18:49
Published on Wednesday, 02 March 2005 00:00
 
SUN'S ROLE IN CLIMATE CHANGE CONTINUES TO SPARK CONTROVERSY
Has an increasing trend in the Sun's brightness contributed to global warming over the last few decades? One study published recently says it has but Judith Lean will... More
Last updated on Friday, 16 April 2010 17:19
Published on Wednesday, 02 March 2005 00:00
 
SPINNING BLACK HOLE CLUE IN GAMMA-RAY BURST SIGNATURES
Spinning black holes could be responsible for at least some of the immensely powerful gamma-ray bursts (GRBs) astronomers observe coming from distant galaxies. On... More
Last updated on Friday, 16 April 2010 18:44
Published on Wednesday, 02 March 2005 00:00
 
GALAXIES OF STARS SHROUDED IN DUST FOUND IN THE EARLY UNIVERSE
A team of astronomers based in the UK and the US has for the first time measured the redshifts of a significant sample of puzzling "submillimetre galaxies", discovered... More
Last updated on Friday, 16 April 2010 17:17
Published on Wednesday, 02 March 2005 00:00