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In this week’s edition of The Prototype, we look at water on Mars, how new technology could end animal testing, a possible vaccine for HIV, and more. You can sign up to get The Prototype in your inbox here.

Although there are many who dream about one day living on Mars, there’s been one challenge to plans for eventually settling on the Red Planet: access to water, which would be vital for any kind of community. But new…

Experts are warning of the dangers of several ‘cleaning hacks’ circulating on TikTok that could lead to anything from chemical burns to explosions.

While common household chemicals can often be used to get a home sparkling clean, using them in combination can be highly risky. Despite this, many videos fail to mention the dangers, instead promoting them as ‘safe, budget-friendly’ solutions.

Most people are aware that mixing bleach and vinegar…

Vaccination against shingles increased among adults age 50 and older in the U.S. during the COVID-19 pandemic, but not equally across all population groups. That’s the key finding from a new study my colleagues and I published in the journal Vaccine.

Shingles is caused by the reactivation of the varicella-zoster virus, the same virus that causes chickenpox. It leads to a painful rash and potentially serious complications – especially in older adults – such as persistent nerve…

On July 24, 2025, the American pro wrestling celebrity Hulk Hogan, whose real name was Terry Bollea, died at the age of 71. Hogan had chronic lymphocytic leukemia and a history of atrial fibrillation, or A-fib, a condition in which the upper chambers of the heart, or atria, beat irregularly and often rapidly. His cause of death has been confirmed as acute myocardial infarction, commonly known as a heart attack.

Hogan became a household name in the 1980s and has long been known for…