Water on Mars not as widespread as previously thought — ScienceDaily

Water on Mars, in the form of brines, may not be as widespread as previously thought, according to a new study by researchers at the Arkansas Center for Space and Planetary Sciences. Researchers combined data on brine evaporation rates, collected through experiments at the center’s Mars simulation chamber, with a global weather circulation model of […]

100 days of wearing masks could make an enormous difference in the pandemic

The more people mask up, the larger these strides will be. Still, even an incremental boost in the number of people who consistently wear masks would have an impact. (Pexels /) Last week, President-elect Joe Biden said that he will ask everybody in the nation to wear masks for the first 100 days after he […]

A matter of balance: asymmetric divisions are crucial to form a functional retina

Balancing proliferation and differentiation in a developing organ are a complex act, especially when these two processes occur at the same time in the same space. The retina is an important interface between the body and the external world: it sits at the back of our eyes and receives and encodes all the visual information, […]

Canada aims to beat 2030 climate target, says Trudeau

Canadian Prime Minister Justin Trudeau has pledged to beat his country’s 2010 climate targets Canadian Prime Minister Justin Trudeau announced Friday an annual hike of his country’s carbon tax by Can$15 (US$12) per tonne after 2022, and billions in new investments to try to beat its climate target. The price on carbon pollution introduced last […]

How long can human embryos stay frozen?

On Oct. 26, a healthy baby girl was born from an embryo that had been frozen for 27 years, a possible record for the longest a human embryo has stayed frozen before being born, according to recent news reports. Molly Everette Gibson was born from an embryo frozen in 1992 and stored in a cryogenic […]

Scientists build whole functioning thymus from human cells — ScienceDaily

Researchers at the Francis Crick Institute and University College London have rebuilt a human thymus, an essential organ in the immune system, using human stem cells and a bioengineered scaffold. Their work is an important step towards being able to build artificial thymi which could be used as transplants. The thymus is an organ in […]

Can’t smell or taste the bacon? It’s probably a sign of COVID-19.

COVID-19 has caused some people to lose their sense of taste for weeks, and even months. (Alex Guillaume/Unsplash/) There’s a new viral trend sweeping the internet. Take a bite of an onion, chase it with a shot of vinegar, and then finish with a chunk of lemon. Those who make it through without wincing or […]

Genes could be key to new COVID-19 treatments, study finds

Potential treatments for Covid-19 have been identified after the discovery of five genes associated with the most severe form of the disease. Genetic evidence is second only to clinical trials as a way to tell which treatments will be effective in a disease. Existing drugs that target the actions of the genes reveal which drugs […]

Chile awaits total eclipse of the sun as Covid restrictions rise

Asronomers preparing telescopes to observe the total eclipse of the sun from the Silla Observatory in the Atacama desert in July 2019 Chileans will turn their eyes to the sky on Monday to admire a total eclipse of the sun, but unlike last year’s phenomenon their numbers will be severely reduced by coronavirus restrictions. Some […]

How does a secure phone line work?

We’ve all seen those corny, binge-watchable spy action series where, upon uncovering a plot, the agent must alert the White House post haste to thwart an imminent attack on the nation. Cue to the horse voice of TV drama “24”‘s star Kiefer Sutherland: “Get me a secure line to the president.”  But what exactly does […]