What is the speed of Earth’s rotation? Here’s why we don’t feel a thing, even though Earth spins at 1,000 mph.

What’s in the middle of the Milky Way? In our neck of the cosmos, everything revolves around a supermassive black hole.

How common is ADHD? Learn more about ADHD and why it seems more people have it than really do.

What are some of the most oddly-shaped galaxies? Learn more about some of the Universe's unusual formations.

Since 1845, SciAm has chronicled the science shaping our world. Explore our legacy in this special anniversary package.

The young open cluster NGC 6709 soars through the sky tonight, visible in Aquila with binoculars or any telescope.

Venus blazes near Zeta Tauri, recreating the sight astronomers saw in 1054 when the Crab Nebula’s progenitor star went supernova.

Pazmino’s Cluster, or Stock 23, is a small open cluster in Camelopardalis that shines as a hidden gem for binoculars and telescopes.

Back to Article List July 25, 1920: The birth of Chushiro Hayashi Today in the history of astronomy, a future physics prizewinner is born.

TRACERS launch paves the way for NASA to study magnetic reconnection and how solar activity affects near-Earth space.

It's 1961, and four intrepid cosmic explorers journey to space under the leadership of Reed Richards, where they encounter cosmic rays that change them forever. But what are cosmic rays?

The post Betelgeuse's long-lost companion emerges from the shadows appeared first on Astronomy Magazine.