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NASA’s Dawn spacecraft mapped dwarf planet Ceres and found evidence — a low-density region of the crust (blue) — of an underground brine reservoir. This composite image shows gravity anomalies (red is high, blue is low) on the right side and Ceres’ real colours on the left. (Anton Ermakov, UC Berkeley, NASA/JPL)
Sky News This Week: August 12, 2020

Evidence builds for Ceres’ watery underground, a Milky Way-like galaxy is found in the young universe, and Mars might be a colder planet than imagined in its early history.

Features

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This Week’s Sky: August 10 to 16, 2020

After the Perseids peak August 11-12, a double shadow transit on Jupiter and the crescent Moon passing close to Venus bring excitement to the weekend.

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Fraught frontier

Satellite constellations are crowding the skies, causing conflict between astronomers, governments and businesses.

Winter Sky Setting at Dinosaur Park Panorama
Limits of the sky

Managing editor Allendria Brunjes talks about limits — limits in the sky, in space, of our machines and bodies.

The Latest

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Getting ready for the Perseid Meteor Shower

Here are some observation and photographing tips for the Perseids, which peak August 12-13, 2020.

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This Week’s Sky: August 3 to 9, 2020

In this week’s sky, a Full Moon that wanes and meets Mars, and Comet NEOWISE passes close to Messier 53.

First ever image of a multi-planet system around a Sun-like star
Sky News This Week: July 29, 2020

In the news recently: a telescope images multiple planets around a Sun-like star, volcanoes on Venus appear to be active and Hubble spots changes in haze on Saturn.

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Speaker Series: The Canadian comet sleuth

Join Canadian comet discoverer David Levy as he speaks about major events of his life — like finding one of the most popular comets in our lifetimes.

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Comet NEOWISE dims to binocular object

Comet NEOWISE is headed on its way out of our Solar System, fading from our skies.

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This Week’s Sky: July 27 to August 2, 2020

As the Southern Delta Aquariids peak, Venus passes CE Tauri and the Moon passes Jupiter and Saturn.

Explore the current issue

vol 27 July/August 2020
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  • 01. Fraught frontier
  • 02. The loneliest scientists
  • 03. Beginner binoculars
  • 04. Rendezvous with Bennu
  • 05. Tech tuned to the cosmos
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Observing

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Comet NEOWISE climbs higher in evening sky

Comet NEOWISE’s trajectory will bring it closest to the Earth July 22.

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Comet NEOWISE takes evening shift

The long-awaited bright comet C/2020 F3 NEOWISE will become visible after sunset this week, adding to its breathtaking morning shows.

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How to find satellites

Sometimes, it’s quite alright to get a nice satellite in your shot. Here are some tips on how to find the human-made orbital objects.

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How to avoid satellites

Ever accidentally caught satellites in your astrophoto? Space journalist Elizabeth Howell has some tips on how to avoid them.

About the Royal Astronomical Society of Canada

The Royal Astronomical Society of Canada (RASC) began as the Toronto Astronomical Club on December 1, 1868. The eight men who gathered to share their interests were not professional astronomers, just working-class citizens with a passion for astronomy.

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