The South American country, which hosts some of the world’s major astronomical observatories, promises to protect its night skies, from the Atacama Desert to Tierra del Fuego.

The post Chile’s Light-Pollution Standard Takes Full Effect appeared first on Sky & Telescope.

Tonight the Moon's in the Teapot. High in early dawn, Mars stands over Jupiter while Regulus twinkles below.

The post This Week's Sky at a Glance, October 16 – 25 appeared first on Sky & Telescope.

This curious cloud requires no solid particles to seed its formation — a theoretical phenomenon that's never been observed until now.

The post A Cloud Forms Spontaneously Over a Mountain on Mars — Here’s Why appeared first on Sky & Telescope.

The Moon bugs out just in time to enjoy the peak of the Orionids, which trace their origin to Halley's Comet.

The post Rise Early on October 22nd for the Orionid Meteor Shower appeared first on Sky & Telescope.

NASA announced three new scientific payloads that will head to the Moon to better understand lunar hazards and resources.

The post NASA Initiative to Study the Moon's Environment appeared first on Sky & Telescope.

New simulations suggest that the planets' orbits will destabilize well before the Sun expands into its red giant phase.

The post The Sun Has a New Life Expectancy, and It’s a Billion Times Shorter appeared first on Sky & Telescope.

Take advantage of these moonless evenings! Make friends with some far Cassiopeia clusters in the high-arching Milky Way. Soon the Moon will return.

The post This Week's Sky at a Glance, October 9 – 18 appeared first on Sky & Telescope.

The stellar gathering known as Garro 04 belongs to a growing number of enigmatic groupings that combine traits of young open clusters ancient globulars.

The post Meet the Star Cluster That Defies Conventions appeared first on Sky & Telescope.

Astronomers have found a distant fast radio burst whose signal has traversed much of the universe before arriving at Earth.

The post Fast Radio Burst Shatters Distance Record appeared first on Sky & Telescope.

Particle physicist earned the 2026 Nobel Prize in Physics for his contributions to neutrino astronomy.

The post Neutrino Hunter Francis Halzen Wins Nobel Prize in Physics appeared first on Sky & Telescope.