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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 artists impression of an exoplanet

Planets like 'Tatooine' Could Still Be Habitable

Jesse Rogerson, PhD

Canada Aviation and Space Museum

The first exosolar planet (a planet orbiting a star other than the Sun) was discovered in 1995, and since then humans have found over 3600 planets outside of our solar system. Some of those found are orbiting not one star like we do, but two stars. For example, stars Kepler-35A and 35B orbit each other, but a planet Kepler-35b, orbits both of them. This is much more like the fantasy word Tatooine in the space epic Star Wars than our own planet Earth. In A New Hope, we see young Luke Skywalker

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 artists impression of the Extremely Large Telescope, to be in use by 2024.

ESO Signs Contracts for the ELT’s Gigantic Primary Mirror

Jesse Rogerson, PhD

Canada Aviation and Space Museum

Looks like progress for the European Southern Observatory's Extremely Large Telescope. Two contracts were awarded to companies to build and test the 39 mirror segments (each 1.4 meters across). Once completed, ELT will be the largest optical telescope on the planet.

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

An artists impression of Proxima Centauri b, the closest exoplanet to Earth.

What Else is Lurking at Proxima Centauri?

Jesse Rogerson, PhD

Canada Aviation and Space Museum

What's the closest star to Earth? Answer: Proxima Centauri, one of three stars in the Alpha Centauri star system. Proxima Centauri is a small M-dwarf star, meaning it is red in colour, and has a relatively cool stellar temperature of about 3000°K. While small, weighing in at 12% the mass of the Sun, M-dwarf stars are the most common star type in the Universe. In 2016, an international group of researchers discovered a planet orbiting Proxima Centauri that is about 1.5x larger than Earth: the

An example of a LEGO observatory

Astronomers Create Detailed Plans for the Extremely Large Telescope (ELT) using LEGO®

Jesse Rogerson, PhD

Canada Aviation and Space Museum

The European Southern Observatory (ESO) is building one of three next generation optical telescopes, called the Extremely Large Telescope (ELT). It will have a primary aperture that is 39 meters wide made of segmented mirrors. Astronomer Frans Snik and his team have created detailed LEGO® instructions for you to now build your own ELT. As both an astronomer and lover of LEGO®, I approve of this project. The other two next generation optical telescopes are the Thirty Meter Telescope (TMT), which

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 Lovejoy with a bright green nucleus and long white, whispy cometary tail.

Comet Lovejoy's Massive Ion Tail

Jesse Rogerson, PhD

Canada Aviation and Space Museum

This image taken by Fritz Helmut Hemmerich captures Comet Lovejoy in all its brilliance. Discovered only in March by Terry Lovejoy, and just finished making its closest approach to the Sun two days ago. Now it's on its long journey back to the outer solar system.

Chandra X-ray observatory took this image of galaxy NGC 4696

An Erupting Black Hole in a Large Elliptical Galaxy

Jesse Rogerson, PhD

Canada Aviation and Space Museum

A super massive black hole lurks at the centre of most galaxies. This fact alone indicates that black holes and galaxies must somehow co-evolve, each shepherding the others growth and function. But how do black holes and their host galaxies physically act on each other? In some recent work done using the Chandra X-ray Observatory, astrophysicists have found evidence of massive periodic jets shooting out from the centre of galaxy NGC 4696 (the 4696th galaxy in the New General Catalogue). Every 5

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