Earth's distance from the sun does not stay the same throughout the year. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. An astronomical unit ...

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 ...

Click anywhere on this site, and you’ll likely run into a measurement in terms of light-years, solar masses, astronomical units, or arcminutes. These units are unique to astronomy, and all can be ...

Both of Friday’s Astronomical Unit lectures are related to celestial phenomena not discernible to human senses. David ...

Appearances aside, the stars are not eternal and the planets do not move with clockwork precision. For these reasons, one astronomer is proposing that his colleagues ditch the astronomical unit, or AU ...

If you guessed the astronomical unit, you are correct. The au — the rough distance between the Earth and the Sun — was previously determined by a confusing calculation (“the radius of an unperturbed ...

The AU - based on the distance between Earth and the sun - has long been in use by astronomers, and the decision by the International Astronomical Union (IAU) simply ...

When it comes to dealing with the cosmos, we humans like to couch things in familiar terms. When examining exoplanets, we classify them based on their similarities to the planets in our own Solar ...

Paris - The world's top astronomical body has endorsed the definition of the "Astronomical Unit" (AU), a measurement used to calculate the distance between stars and planets. The AU - based on the ...