See a Green Star and Watch Japan Launch for Phobos

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This week in the world of astronomy, watch the launch of JAXA's Martian Moons eXploration mission, and discover the first green star. Plus, find out what JWST and Spitzer are learning about planetesimals by watching young planetary systems.

This Week's Sky at a Glance, October 23 – November 1

The Moon lights the way to Saturn 3,300 times farther behind it. Then the Moon befriends the Pleiades. The Ghost of Summer Suns arrives for Halloween. The Dipper lies low.

A Chartreuse White Dwarf Shows Some Stars Really Are Green

One colour has always been missing from the stellar rainbow: green.

Now, astronomers have identified a star that breaks this rule.

Japan Launches the Martian Moons Exploration Mission

An ambitious mission will explore the moons of Mars, and bring back the first ever sample from Phobos.

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Webb and Spitzer Telescopes Explore the Planets That Never Were

Planetesimal wrecks are raging around distant stars. With the Webb and Spitzer Space Telescopes, astronomers are learning what that looks like.

Chile’s Light-Pollution Standard T akes Full Effect

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.

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Observing Highlights

Getting Started in Planetary Imaging

It's planet season! Here are some tips to help you start imaging the giant planets while they're in easy view.

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October Podcast: Saturn is a “Star”

This episode takes you on a tour of the stars and planets that you’ll see overhead during October.

Presented by: Celestron.

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2026 Bluff Dark Sky Festival

Discover the Sky We Share at the Bluff Dark Sky Festival, November 13–14, in Bluff, Utah! This unique festival brings together Western astronomy and Indigenous perspectives on the night sky, featuring Navajo storytelling, a Ute flute player, and presentations by renowned astronomer and author Dean Regas.

NEW Giant Binoculars Wow with ED Glass

Massive in size and extraordinary in light-gathering capability, the new Explore Scientific ED Giant Binoculars deliver immersive views of the night sky that truly wow. In addition to offering the natural advantages of observing with both eyes, these binoculars feature ED (extra-low dispersion) glass, which significantly reduces chromatic aberration and improves color correction for better contrast, truer color and sharper detail.

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