Recently, NASA launched it’s next rover to Mars, following the 2012 arrival of Curiosity (I also can’t believe it’s been 8 years). The Perseverance rover has begun it’s 7 month journey, and to bring everyone up to speed, I made a video about the rover, the launch and landing, science instruments, science goals, and anything else that you need to know! Enjoy!
It’s an amazing time to look up to the night sky! For the first time in nearly 6700 years, comet C/2020 F3 NEOWISE has made it’s return to the inner solar system. These small, icy, dirty clumps remain dim and dark through over 90% of their journey from the distant reaches of the Solar System, but once they close in on the immense heat of our nearest star, things change. Comet C/2020 F3 NEOWISE captured by the Parker Solar Probe as it swings around the Sun. Credits: NASA/Johns Hopkins APL/Naval Research Lab/Parker Solar Probe/Brendan Gallagher The ice melts, pockets of...
This post is a collaboration with my good friend Bob Wegner, a professional musician, amateur astronomer, and genuinely good person. With the New Horizons spacecraft passing Ultima Thule on New Year’s eve 2019, Bob and I noticed that Queen guitarist and astronomer Brian May was on hand for the live event, playing a newly-written song to mark the event. Bob and I often talk about astronomy, as I’m always interested in his perspective as an enthusiast, while he’s equally interested in my opinion as a professional. We decided to take this event and write about it from two perspectives. For...
I love working on different projects every day. Some days I present planetarium shows, some days I do a radio show, some days I’m doing video conference calls with school children, and some days I’m on TV commenting on recent space news. I enjoy the variety that being a science communicator offers. In that spirit, I want to introduce a project I’ve been working on for the past year, a podcast called “The Expanding Universe.” Together with my good friend Jesse Rogerson (@JesseRogerson), a fellow astronomer and science communicator, we have been recording an episode every two weeks on...
Although the August 21st eclipse happened about 6 weeks ago, I realized it would take me a long time to edit all the photos I took during my trip. I had over 2000 individual shots of the eclipse alone, taking a single (1/4000 s) shot every 10 seconds, at ISO 100, with my telescope coming out at around f/6. I’ve done a lot of time-lapse photography before, so I thought it would be a routine shot, but I was wrong. Eclipses are much tougher to edit in terms of a time-lapse. But first, the end result of my 10 hours...
As I often do, I pulled up the Astronomy Picture of the Day, and noticed today’s photo was a fond reminder of the eclipse I witnessed a month ago. I began to think about the preparation and timing, planning and organizing, the countless hours of testing gear for a single moment lasting two minutes, where the Moon and Sun aligned. I was in the right place, at the right time. Solar Eclipses are rare, and it’s mostly because only a narrow band of land on Earth, usually around 100 Km wide, experiences such an event at any one time. And with...
I remember vividly my first astronomy class in university. Winter 2004, only months before the Cassini spacecraft was set to arrive at Saturn after a seven year journey. On several occasions in that class we talked about what we might see when Cassini reached it’s destination. The first dedicated mission to the jewel of the solar system, originally conceived right after the voyager flyby in 1982, would give us a chance to study more than just a planet, but an entire system of interaction between a planet and it’s moons. Beyond that, it included the Huygens probe, to land at...
Have you ever read the story of the discovery of Neptune? It truly is a triumph of science and mathematics, and part of the reason it is my favourite planet (a hard choice to make). The story goes like this: It all starts with the discovery of Uranus in 1781 by William Herschel. This was the first ever discovery of a planet, as the Earth and the five visible planets have been known of since the dawn of history. Thanks to Isaac Newton working out the laws of gravitation and the mechanics of the solar system, mathematicians could easily calculate the properties...
Why does the Sun seem red near the horizon? Why does the Moon do the same? We know the Moon isn’t actually changing colour, and the Sun isn’t either. So what is happening to the light? The first thing to note about the image above is that the size of the Moon doesn’t change, showing that the well-known ‘Moon Illusion,’ where the Moon appears larger near the horizon, is just that – an illusion. The second is of course the gradual change in hue as the Moon rises. The reason for the colour shift really has nothing to do with the Moon...
One of the reasons I love science is that it actually does allow us to look into the past and future, beyond our existence in the present. Written history gives us a perspective of a person who was around before any human currently living on Earth, and allows us to piece together the history of our culture. This is very important, so no disrespect to historians and their work. Much disrespect to fortune telling though. It’s a waste of energy involving a person who fishes for information for a living. But let’s talk about Science. Since we just passed Canada...
