There are designated areas in the U.S. where the night sky is so crystal clear that you can see the Milky Way galaxy ...

Optical engineering is a field that thrives on precision and creativity. It requires scientists to design systems that push ...

Cosmic dust, it turns out, isn’t made of miniature rocks. It’s fluff. A comprehensive analysis of data from space missions, ...

MIT joins the consortium building the Giant Magellan Telescope, thanks to a donation by Phillip and Susan Ragon.

Vaonis has just released a limited-edition run of their Vespera II smart telescopes with a stylish clear housing and a ...

The Habitable Worlds Observatory is poised to tell us whether Earthlike planets are common—if it can get off the ground ...

When you think of telescopes in space, you probably think of the Hubble Space Telescope and its younger, larger sibling, the ...

Our Milky Way galaxy never sits still: it rotates and wobbles. And now, data from the European Space Agency's Gaia space ...

A long-exposure image taken from Cerro Pachón captures the luminous road connecting two of Chile's most important ...

October opens with Saturn, just about a week past opposition, high up in the eastern sky after dark and visible all night. ...

This article, originally titled "The Man Who Discovered the Universe," is from the Summer 2025 issue of Air & Space Quarterly ...