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Telescope brings Western and Indigenous astronomy into focus

Ingenium - Canada's Museums of Science and Innovation

Two streams of astronomical thought and practice are represented in a stunning display at the Canada Science and Technology Museum – but visitors will need to act fast in order to see it. A telescope made by Eustachio Divini – an extremely fragile and valuable artifact which dates back to 1665 – is on international loan for the next six months, after travelling all the way from the Museo Galileo in Florence, Italy to Ottawa. The unexpected backdrop to this ornamented artifact – which is regally

An image of a large city at night with a lot of lighting.

Earth & Environment

Are We Losing the Night Sky?

Jesse Rogerson, PhD

Canada Aviation and Space Museum

As an astronomer, I have a vested interested in reducing light pollution as much as possible. The less light shining up into the sky, the less light reflects back down into my telescopes during my research nights. However, there are many more things that light pollution affects: animal migratory patterns, crop pollination, and human health. Check out the story from BBC News

A group of people looking up at the night sky.

The Death of Stars

Jesse Rogerson, PhD

Canada Aviation and Space Museum

Question: Are the stars that I look at in the night sky already dead? Answer: That’s a great question! I get this question often, and what I love about it is the person asking can feel the immensity of the Universe. The question is rooted in the feeling that the stars are at such incredible distances that in the time it takes the light to get to our eyes, the star could have already died. A question like that packs in curiosity for, and awe of, the natural world. The answer, well, it depends on

image of the boomerang nebula

ALMA Returns to the Boomerang Nebula

Jesse Rogerson, PhD

Canada Aviation and Space Museum

The Boomerang Nebula is the coldest location in the known universe at roughly 2 degrees colder than empty space! This nebula is the result of the death of a red giant star, and the extreme temperature is caused by the rapid expansion of the nebula. According to thermodynamics, if you expand a gas you cool a gas (just try using one of those compressed air cans for cleaning electronics). However, according to astronomers, a single star's death could not account for a strong enough wind to create

An artists impression of exoplanets.

The Science Behind the Art: Visualizing Astrophysics

Jesse Rogerson, PhD

Canada Aviation and Space Museum

When you read a scientific story in a popular blog or magazine, many times you will see the caveat "artist interpretation" next to some of the accompanying images. This as a gross undersell of the time, effort, and most important, accuracy, that goes into developing the renders. While we don't know what a black hole or an exoplanet looks like, it is important to attempt to visualize them, and to do it as accurately as possible. This video is an interview with two people who are responsible for

A high resolution of multiple nebula.

VST Captures Three-In-One

Jesse Rogerson, PhD

Canada Aviation and Space Museum

The European Southern Observatory (ESO) released a 3 gigapixel image of Sharpless 2-54, the Eagle Nebula, and the Omega Nebula; the detail is astounding. Taken with the Very Large Telescope (VLT) located at the Paranal Observatory, Chile, the image spans roughly 2 degrees on the sky, or about 4 full moons side-by-side. One of the most iconic nebula in the sky, the Eagle Nebula is at the centre of the image.

An artist's impression of a newly discovered exoplanet.

Newly Discovered Exoplanet May be Best Candidate in Search for Signs of Life

Jesse Rogerson, PhD

Canada Aviation and Space Museum

A newly discovered exoplanet, LHS 1140b, is being called the "best place to look for signs of life beyond the Solar System." The reason is because of a confluence of factors: the planet is likely rocky, orbits a relatively quiet star, passes in-front of its star from Earth's point-of-view every 25 days, and likely has an atmosphere. At the moment, studying that atmosphere in detail is not possible; however, with the next generation of telescopes coming online in the coming years (TMT, ELT, JWST)

An image of the Boomerang Nebula.

The Coldest Place in the Universe

Jesse Rogerson, PhD

Canada Aviation and Space Museum

The Boomerang Nebula is the coldest location in the known universe: it measures at roughly 2 degrees colder than empty space! This nebula is the result of the death of a red giant star, and the extreme temperature is caused by the rapid expansion of the nebula. According to thermodynamics, if you expand a gas you, cool a gas (just try using one of those compressed air cans for cleaning electronics). However, according to astronomers, a single star's death could not account for a strong enough

A radio telescope

Groundbreaking for the World's Largest Telescope's Headquarters

Jesse Rogerson, PhD

Canada Aviation and Space Museum

The Square Kilometer Array (SKA) will be a network of radio telescopes spanning the entire globe. Together, the thousands of telescopes will add to 1 square kilometer of collecting area. While the project isn't set to have first light (read: turn the telescope on for the first time) until the 2020s, the SKA Organization broke ground on a new Head Quarters April 28, 2017. The HQ will be located next to the Jodrell Bank Observatory in Lower Withington, UK. This is a major step forward in the

Comet ISON as imaged by NASA

Comets That Will Flyby Earth in 2017 and 2018

Jesse Rogerson, PhD

Canada Aviation and Space Museum

In 2017 and 2018 there will be three comets passing relatively close to Earth. One has the chance of being naked-eye brightness. With the help of amateur astronomers, NASA plans to study these in detail. Check out the latest Science at NASA.

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