Scientists using the James Webb and Hubble space telescopes have confirmed one of the biggest head-scratchers in modern ...
Standard Candles and the Cosmic Distance LadderIn 1924, observing the night sky through what was then the world's largest ...
astronomers can chain Cepheid readings into a "cosmic distance ladder" to peer deeper into the universe's past. But this is where the headache begins. Using the European Space Agency's Planck ...