Astronomer Dan Joyce tells us, “Nowadays, it’s rather simple: Just bounce radar off it (the sun).” The original determination by researchers in the late 1700s was a value of 87.5 million miles. Joyce ...
In a solar-system-shaking victory for lay language, scientists have voted to redefine one of the most foundational measurements in all of astronomy, the mean distance between the sun and the Earth.
The International Astronomical Union drops the mic. How far away from Earth is the sun? Not just, you know, very, very far, but in terms of an actual, measurable distance? When you're calculating, how ...
Oldest measurement of Earth's magnetic field reveals battle between sun and Earth for our atmosphere
Scientists at the University of Rochester have discovered that the Earth's magnetic field 3.5 billion years ago was only half as strong as it is today, and that this weakness, coupled with a strong ...
One of the stalwart units of astronomy just got a makeover. The International Astronomical Union, the authority on astronomical constants, has voted unanimously to redefine the astronomical unit, the ...
One of the stalwart units of astronomy just got a makeover. The International Astronomical Union, the authority on astronomical constants, has voted unanimously to redefine the astronomical unit, the ...
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