Tagged: astronomers

Astronomers turn back time to solve Einstein ring mystery

Astronomers time traveled through archives of data to spot an object that made history in the 1980s and solve a long-standing cosmic mystery. While practicing socially distant science, a group of researchers dug through old data from Keck Observatory on Mauna Kea in Hawaii and...

How are astronomers able to measure how far away a star is?

It turns out that measuring the distance to a star is an interesting problem! Astronomers have come up with two different techniques to estimate how far away any given star is. The first technique uses triangulation (a.k.a. parallax). The Earth’s orbit around the sun has...