Geoff Gaherty was Space.com's Night Sky columnist and in partnership with Starry Night software and a dedicated amateur astronomer who sought to share the wonders of the night sky with the world. Based in Canada, Geoff studied mathematics and physics at McGill University and earned a Ph.D. in anthropology from the University of Toronto, all while pursuing a passion for the night sky and serving as an astronomy communicator. He credited a partial solar eclipse observed in 1946 (at age 5) and his 1957 sighting of the Comet Arend-Roland as a teenager for sparking his interest in amateur astronomy. In 2008, Geoff won the Chant Medal from the Royal Astronomical Society of Canada, an award given to a Canadian amateur astronomer in recognition of their lifetime achievements. Sadly, Geoff passed away July 7, 2016 due to complications from a kidney transplant, but his legacy continues at Starry Night.
Latest articles by Geoff Gaherty

By Geoff Gaherty Published

By Geoff Gaherty Published
In mid-July 2013, skywatchers will be able to observe the moon moving in relation to Spica and Saturn. Also, Mars and Jupiter appear to move together in the morning sky.

By Geoff Gaherty Published
Venus is shining low in the western evening sky. On Wednesday, July 3, Venus shines with the Beehive Cluster of stars. Here's how to see it.

By Geoff Gaherty Published
The cosmic scorpion constellation Scorpius actually looks like its namesake, unlike many other constellations.

By Geoff Gaherty Published
Mercury and the solstice make this a can't-miss week in skywatching.

By Geoff Gaherty Published
The moon, Saturn and the bright star Spica shine together.

By Geoff Gaherty Published
Use brilliant Venus to point the way.

By Geoff Gaherty Published
Ophiuchus, a rarely spotted constellation, makes an appearance in the summer sky.

By Geoff Gaherty Published
Don't miss your chance to see three bright planets in the night sky.

By Geoff Gaherty Published
The mountains of the moon are visible for those that wish to see them this month.

By Geoff Gaherty Published
Parts of Australia and the Pacific region will get a rare skywatching treat on Thursday and Friday.

By Geoff Gaherty Published
Bright constellations, galaxies and a globular cluster are on show in the night sky.

By Geoff Gaherty Published
Saturn will be at its best and brightest in the predawn sky on Sunday (April 28). Here's how to see Saturn at opposition.

By Geoff Gaherty Published
You can't see any footprints, but it's still neat to observe the six Apollo landing sites through a telescope.

By Geoff Gaherty Published
Want to see Jupiter in daylight? Here's how:

By Geoff Gaherty Published
You can see all but a few of the 110 Messier objects in a single night this weekend.

By Geoff Gaherty Published
Spring is the season for hunting galaxies. Look eastward around 10 p.m. this weekend to explore 'the realm of the galaxies.'

By Geoff Gaherty Published
The day and night are exactly the same length during today's equinox.

By Geoff Gaherty Published
A close conjunction of the moon and Jupiter is sure to dazzle stargazers this week.

By Geoff Gaherty Published
Is it PANSTARRS, PanSTARRS or Pan-STARRS?

By Geoff Gaherty Published
Comet Pan-STARRS is currently the brightest comet in the night sky in recent years, but only the opening act for 2013.

By Geoff Gaherty Published
Made of interplanetary dust, the Zodiacal Light is a faint haze in the night sky.

By Geoff Gaherty Published
There's plenty to see now on Earth's nearest neighbor.
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