In a horrendous accident, a cinematographer has died and a director has been injured after Alec Baldwin fired a prop gun while filming in New Mexico.

When shooting a film with guns, there are many choices to make: each prop needs to be appropriate for the character, and appropriate for the scene. There is also the choice of whether you will use replica weapons, real weapons, or a mix.

But most importantly, everyone on set needs to know how to work alongside guns.

Today’s global energy inequities are staggering.

Ivermectin is an over 30-year-old wonder drug that treats life- and sight-threatening parasitic infections. Its lasting influence on global health has been so profound that two of the key researchers in its discovery and development won the Nobel Prize in 2015.

I’ve been an infectious disease pharmacist for over 25 years. I’ve also managed patients who delayed proper treatment for their severe COVID-19 infections because they thought ivermectin could cure them.

Fear and frustration hang over London, Ont., where many people are discussing four formal allegations of sexual violence reported to Western University and sharing unconfirmed rumours about wider sexual assaults. Members of the Western community say they feel unsafe, especially young women and other vulnerable groups.

In response to the situation, students organized a walkout rally on Sept. 17 to stand with survivors and demand change.

Epilepsy is a brain disorder that arises from imbalances of brain chemicals called neurotransmitters. This disorder manifests as recurring seizure, unconsciousness and momentary loss of memory. These events are frequent and unpredictable. This is because the brain cells called neurons either overwork or are unable to balance the release of two chemicals that are vital for normal brain function: gamma aminobutyric acid and glutamate.

The burden of epilepsy in Nigeria is high, with estimated prevalence of eight per 1,000 people.

I’m puzzled as to why the planets, stars and moons are all round (when) other large and small objects such as asteroids and meteorites are irregular shapes?

— Lionel Young, age 74, Launceston, Tasmania

This is a fantastic question Lionel, and a really good observation!

When we look out at the Solar System, we see objects of all sizes — from tiny grains of dust, to giant planets and the Sun. A common theme among those objects is the big ones are (more or less) round, while the small ones are irregular. But why?