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A double rainbow seen from Saguaro National Park in Tucson, Arizona, features a bright primary and a faint secondary as a companion. In the foreground are giant saguaro cacti.

Explore the science of rainbows

Euclid releases stunning first map of the deep sky

Science, Solar System

India’s lunar rover found remnants of the Moon’s ancient global magma ocean

NASA FLUTE telescope

Robotic Spaceflight, Science

This NASA project could create staggeringly powerful telescopes

Starmus kicked off a spectacular concert event open to the public in Bratislava, which attracted some 25,000 to 30,000 people who flocked to the site. The brilliant electronic musician Jean-Michel Jarre took to the stage, aided by lasers and fireworks, and hosted special guest Brian May of Queen. Credit: David J. Eicher.

Science, Solar System

Starmus spotlights planet Earth: This Week in Astronomy with Dave Eicher

The Prague astronomical clock. Credit: Wikimedia Commons.

The secrets and scandal of the Prague astronomical clock

An artist's conception of the young Earth being bombarded by asteroids. Scientists think these impacts could have delivered significant amounts of organic matter and water to Earth. Credit: NASA.

Alien Life, Science, Solar System

Evidence grows that meteorites, comets could have brought essentials of life to early Earth

2024 Solar Eclipse, Science

While millions watched the eclipse, these Purdue University scientists listened

A volcano towers over its surroundings, the terrain shown in false-color yellows and oranges.

Science, Solar System

How Venus threw up on itself: This Week in Astronomy with Dave Eicher

Person looking up at the night sky and Milky Way

Astronomy for beginners, Science, Uncategorized

How should we classify the cosmos?

Galaxies, Science

The zoo of active galaxies: This Week in Astronomy with Dave Eicher

Science, Solar System

The story of Percival Lowell: This Week in Astronomy with Dave Eicher