Why should a galaxy have bluish spiral arms dotted with red patches and dark lanes. Why should it have a central region that is yellow and spherical rather than flat? Why are they flat to begin with? Because Galaxies are so huge, and made from hundreds of Billions of stars that change over the course of their lives, a galaxy shows the entire life cycle of a star in its own structure. Stars are born along spiral arms, where most of the thick dust and gas clouds are concentrated. The dark dust lanes of spiral arms condense to form stars,...
I went to the movies last night to see ‘The Martian,’ something I have been excited about for a long time. The theatre was packed, and the movie was amazing, both unsurprising facts. I had very few scientific issues with the film, even with low standards for a big screen pic, but mostly due to first thing the screen showed: ‘NASA was heavily consulted to ensure the science in this movie is accurate.’ Way to go Hollywood! My favourite parts of the movie employed some hilarious use of technical definitions. For example, when Mark Watney grows potatoes on Mars, he says...
I’m addicted. I love astrophotography. I find myself spending a lot of time working no the photos, being outside trying to get the perfect shot, learning how to use my camera and other equipment, and putting together a wish list of equipment that will let me do even more! I went outside before sunrise yesterday and managed to snap an hour’s worth of images, adding to an hour from the night before, where I attempted some star trails over the city of Toronto. All I’ve done so far today is play with the photos and learn to make them look...
Some colour images were released from New Horizons today, showing some of the first true colour views of the icy dwarf planet. The amazing thing is that to human eyes, the combination of Methane and Nitrogen in the atmosphere give it a gorgeous blue tinge. The other amazing piece of news is that Pluto has water ice on its surface! Check out these photos highlighted for surface water ice. By looking for the signature of Sunlight reflected off water, the cameras on New Horizons can spot regions where water ice is dominant. Pluto continues to surprise!
The month of October has some promising sights for Astronomers and the public, though only if you are an early riser. The intricate pre-dawn dance of the Planets Venus, Mars, and Jupiter continues from it’s initial soiree in September, with a couple of close passes throughout the month that are must-see. Early on in the month, the waning crescent moon passes the group and gives us a perspective on the plane of the Solar System. By month’s end, the planets will continue to shift around as they are joined by Mercury, slowly rising above the morning Sun. Here are a...
When the launch of the James Webb Space Telescope comes a few years from now, we will have then opportunity to probe deeper into the cosmos than ever before, to see things we had only dreamed of seeing previously. Among the prime targets for this modern marvel of human ingenuity are potentially habitable exoplanets, where future humans could live, provided there isn’t already life occupying the real estate. To help astronomers assign importance to the growing number of exoplanets, researchers at the University of Washington’s Virtual Planetary Laboratory have devised an index to represent the habitability of worlds, near and...
And the 2015 Nobel Prize in Physics goes to….. Arthur B. McDonald and Takaaki Kajita for the discovery of neutrino oscillations, which show that neutrinos have mass. It fills me with pride to see that a Canadian scientist can win the most distinguished award for Physics in the world, and proves that cutting edge research is done by Canadian Universities. We are an important part of the global machine that is advancing humanity’s understanding of science. So what did this East-West collaboration discover? A long Standing Problem in particle Physics, called the ‘solar neutrino problem,’ developed back in the 1960s....
The high resolution data keeps on coming in from New Horizons, now far beyond the dwarf planet Pluto. Using some of the images as the craft flew by, mission scientists were able to create a fantastic video that gives you some perspective as if you were flying along yourself. We can see Charon and other moons during the early and later stages of the fly-by, with the orbits overlaid, giving perspective on how the Plutonian system’s mechanics work. As the craft approaches Pluto, time slows down to appreciate the closest approach and see the stunning detail revealed in the...
I made a big purchase this year, one that I have wanted to make for a long time. I bought a digital single lens reflex camera (DSLR) – A Canon Rebel T3i. The only reason I did this was for astrophotography. I like photography in general – the idea of getting the perfect shot, cleaning up an image, enhancing details that were not there before. But after a trip to Europe where I felt I took too many photos, I decided that I didn’t want to experience my life through the lens of a camera, especially in an age where...
Are equations beautiful? Does a mathematician see the machine code of the universe in the complex language they use? Does a Chemist see the flow of matter? Does a Biologist see the evolution of life? Does a physicist see the probabilistic nature of electrons? Many scientists would affirm their view that the equations that dictate their respective fields are artistic, in addition to logical. So if equations can be beautiful, what is the most beautiful equation? Naturally, the most beautiful equation should be simple. It should be somewhat intuitive, yet surprising in it’s result. It should explain something fundamental about the universe,...
