Join International Observe the Moon Night and Hunt Down a Bright Supernova in NGC 7331

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This week in the world of astronomy, hunt down a bright supernova in NGC 7331 and join observers across the globe during International Observe the Moon Night. Plus, watch exomoons forming in the disk around exoplanet PDS 70c.

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This Week's Sky at a Glance, September 18 – 27

Every evening the waxing gibbous Moon reveals a wealth of new telescopic detail. Can you still catch Venus low in twilight as it nears conjunction? On the opposite side of the sky, Saturn nears opposition.

Are Moons Growing Around Exoplanet PDS 70c?

New research suggests that the circumplanetary disk surrounding the exoplanet PDS 70c contains a ring of dense dust, and the conditions within this ring may allow baby moons to form.

Some Pairs of Stars Weren’t Born That Way

Two massive stars might’ve been born separately before getting tangled in each other’s orbits, revealing a new way that binaries form.

Once-in-a-Century Impact Made a “Cold Spot” on the Moon

In watching an impact’s aftermath, scientists have confirmed that such large blasts shake up and cool wide swaths of the lunar surface.

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Observing Highlights

Airdrie Observatory Open Evening

Enjoy a warm welcome by astronomers from the Airdrie Astronomical Association to this one of their regular public open evenings at the Airdrie Observatory.