A wide open space (It could be your backyard or a park.) Two Hula-Hoops (Alternatively, you could use two flat rocks or bricks that you can sit on.) A yardstick or meterstick (Use one that has clear ...

Parallax is the observed displacement of an object caused by the change of the observer's point of view. In astronomy, it is an irreplaceable tool for calculating distances of far away stars. When you ...

For the first time, astronomers have directly measured the distance to a spot clear across the galaxy. The established but challenging technique promises a new way to map the structure of the Milky ...

Astronomical units (AU), defined by the Sun-Earth distance, are used for measuring distances within solar systems. Light-years, representing the distance light travels in a year (approximately 6 ...

How do scientists calculate the distance from Earth to a star or galaxy? originally appeared on Quora - the knowledge sharing network where compelling questions are answered by people with unique ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Astronomers have directly measured a blazing-bright object on the opposite side of the Milky Way, ...