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

In our September 2025 issue, S. Alan Stern lists his top revolutions in the field of planetary science. Now, we want to hear what you think!

A death-defying star survived destruction by a ravenous supermassive black hole in a tidal disruption event, and came back to let the cosmic titan take another bite!

Scientists have examined the interstellar invader 3I/ATLAS, finding evidence that it is packed with water that could be older than the solar system.

A court determined this week that Mike Lynch’s estate is liable for damages sought by Hewlett Packard Enterprises (HPE) over ...

Explore the Soul Nebula (IC 1848), a star-forming region in Cassiopeia. Learn its clusters and why it's a favorite for astrophotographers.

The long-serving space telescope saw the third interloper to enter the solar system from beyond its limits late on Monday morning (July 21).

Astronomers have discovered a 200-light-year-wide Giant Molecular Cloud dubbed the Midpoint cloud that seems to be feeding star-building material to the heart of the Milky Way.

Chile's Vera Rubin observatory is named for the astronomer who changed the way we think about how galaxies move.

The Heart Nebula, cataloged as IC 1805 and also sometimes called the Running Dog Nebula, is a large star-forming region in our galaxy.

Astronomy Astronomers crack 1,000-year-old Betelgeuse mystery with 1st-ever sighting of secret companion (photo, video) News By Robert Lea published July 21, 2025 ...

Supernovas, kilonovas, gamma-ray bursts... oh my! The Nancy Grace Roman Space Telescope will uncover 100,000 of these explosions and many more powerful and violent cosmic events.