Space & Physics

The nonprofit Astronomers Without Borders is collecting gently used eclipse glasses through Warby Parker and other sites to enable people to see future eclipses

According to Albert Einstein’s general theory of relativity, the universe remembers every gravitational wave—and scientists could soon test these cosmic recollections

During the total solar eclipse, skywatchers saw ruby-colored prominences sticking out of the moon's shadow. Here's the science of those red dots

Scientific American staffers headed to locations ranging from Texas to Vermont to try to catch a glimpse of the total solar eclipse

The atmosphere of exoplanet WASP-76b may rain iron and form a strange, rainbow-like phenomenon called a “glory” never yet seen outside the solar system

Astronomical simulations and ancient Egyptian texts show the Milky Way was linked to the ancient Egyptian sky goddess Nut. This fits within multicultural myths about our home galaxy

Here’s how to pick a viewing spot, stay on top of the weather and pack the right gear to see the total solar eclipse on April 8

Dragon bones, mysterious carvings and simple math reveal ancient eclipses

To make the most of any total solar eclipse, put down your gadgets and bask in one of our solar system’s most glorious spectacles

Total solar eclipses have set the stage for major scientific advancements—everything from the discovery of helium to the testing of Einstein’s general theory of relativity.

Predicting what the sun will look like during a total solar eclipse is a helpful exercise for scientists in the long quest to understand how our star works

Eclipses bring the future—or at least a tiny sliver of it—into sharp focus