Geoff Gaherty, SPACE.com

Geoff Gaherty

SPACE.com

Severn, ON, Canada

Contact Geoff

Discover and connect with journalists and influencers around the world, save time on email research, monitor the news, and more.

Start free trial

Recent:
  • Unknown
Past:
  • SPACE.com
  • The Christian Science Monitor

Past articles by Geoff:

Are You Ready for the Transit of Mercury? Rare Event Occurs in May

May 9, 2016, will bring an infrequent skywatching treat: Mercury passing in front of the sun. → Read More

Lunar Lovers, Why Now Is the Best Time to Moon Watch

One of the first things every new moon watcher learns is that, when observing the moon, timing is everything. This week, it turns out, is the best time to see the moon in November. Here's how to see it. → Read More

Don't Miss Your Last Chance to See Saturn for Awhile

If you've been looking for Saturn lately, you've seen it rapidly sinking towards the sun in the southwestern sky just after sunset. This week is probably your last chance to spot Saturn before it disappears into the sun's glow. → Read More

Fireballs from Taurus: See the Taurid Meteors This Week

Meteors, popularly called "shooting stars," are much more common than most people think. In fact, there's a display going on now - courtesy of the Taurid meteor shower — if you know when and where to look. → Read More

Autumn's Night Skies Offer the Best of Summer ... and Winter

Look up into the sky this week to see why autumn is the favorite season for many skywatchers: You can get your last look at summer stars and, if you stay up late, your first look at winter stars. → Read More

Best Night Sky Events of November 2015 (Stargazing Maps)

See what's up in the night sky for November 2015, including stargazing events and the moon's phases, in this Space.com gallery courtesy of Starry Night Software. → Read More

Brilliant Venus to Join Jupiter and Mars in Pre-Dawn Sky Monday: How To See It

Venus has been dominating the morning sky for the past two months, and Monday (Oct. 26), it will form a vivid tableau with Jupiter and Mars as it reaches its farthest point from the sun. → Read More

Brilliant Venus to Join Jupiter and Mars in Pre-Dawn Sky Monday: How To See It

Venus has been dominating the morning sky for the past two months, and Monday (Oct. 26), it will form a vivid tableau with Jupiter and Mars as it reaches its farthest point from the sun. → Read More

Brilliant Venus to Join Jupiter and Mars in Pre-Dawn Sky Monday: How To See It

Venus has been dominating the morning sky for the past two months, and Monday (Oct. 26), it will form a vivid tableau with Jupiter and Mars as it reaches its farthest point from the sun. → Read More

Brilliant Venus to Join Jupiter and Mars in Pre-Dawn Sky Monday: How To See It

Venus has been dominating the morning sky for the past two months, and Monday (Oct. 26), it will form a vivid tableau with Jupiter and Mars as it reaches its farthest point from the sun. → Read More

Planets Galore: How to See Uranus, Mercury, Jupiter and Mars

Sometimes a whole bunch of different sky events happen over a very short period, giving skywatchers a chance to witness many unusual events in a few days. The next week or two is a case in point, with Uranus, Mercury, Jupiter and Mars are making notable a → Read More

The Moon Goes Visiting: Bright Views in This Week’s Early Morning Sky

If you’re delighted by the ever-changing sky, here are some of its brightest inhabitants to watch for this week just before dawn. → Read More

Best Night Sky Events of October 2015 (Stargazing Maps)

See what's up in the night sky for October 2015, including stargazing events and the moon's phases, in this Space.com gallery courtesy of Starry Night Software. → Read More

How to Spot the Asteroid Vesta in October's Night Sky

The next two weeks provide an excellent opportunity to spot the brightest asteroid visible from Earth, Vesta — one of the best-known objects in the solar system. → Read More

Total Lunar Eclipse Will Bring a Moon Triple Treat Sunday

This Sunday night moon observers have the chance to see a lunar triple treat, weather permitting. Not only is it a Harvest Full Moon, but also a so-called supermoon and total lunar eclipse. → Read More

Tonight's Waxing Crescent Moon: A Skywatching Tour

Starting with the waxing crescent moon tonight (Sept. 16), skywatchers with binoculars or small telescopes can spot the moon's geographic features in vivid detail. Here's how, and what to look out for. → Read More

Partial Solar Eclipse to Darken Southern Africa's Skies Sunday

The penguins are in luck, as are many southern skywatchers: A solar eclipse will be visible from Antarctica, southern Africa and the Indian Ocean on Sunday (Sept. 13). → Read More

Right Place, Right Time: See Mercury in the Night Sky This Week

Mercury is a very challenging planet to view, but this week, skywatchers have a good chance to see it, especially in the Southern Hemisphere. → Read More

Best Night Sky Events of September 2015 (Stargazing Maps)

See what's up in the night sky for September 2015, including stargazing events and the moon's phases, in this Space.com gallery courtesy of Starry Night Software. → Read More

Forget the 'Supermoon': What's Actually Happening at Lunar Perigee

You'll probably hear a lot about a "supermoon" over the next few months. This is not a term that astronomers use, but here are some facts about what will actually happen. → Read More