Water on Mars: Does this mean life existed?

Water on Mars: Does this mean life existed?

By Jonti Horner We now know that there is permanent liquid water on Mars, according to a paper published last week in the journal Science. This new finding comes from research using the Mars Express spacecraft that has been orbiting the red planet since December 25,...
Pulling all-nighters may damage your brain

Pulling all-nighters may damage your brain

By Hannah Thomasy For decades, scientists have suspected that there is a connection between poor sleep and neurodegenerative diseases like Alzheimer’s disease. People with Alzheimer’s often have low quality sleep, and the same thing has been found in animals with the...
Who owns the moon?

Who owns the moon?

By Frans von der Dunk Most likely, this is the best-known picture of a flag ever taken: Buzz Aldrin standing next to the first U.S. flag planted on the Moon. For those who knew their world history, it also rang some alarm bells. Only less than a century ago, back on...
After Mugabe, who will hold power in Zimbabwe?

After Mugabe, who will hold power in Zimbabwe?

By David B. Moore Zimbabwean President Emmerson Mnangagwa and the ruling Zanu-PF hope a credible victory in the July 30 election will legitimise the power (both party and state) they gained from the “soft coup” that toppled his predecessor Robert Mugabe last November....
Should you let your dog lick your face?

Should you let your dog lick your face?

By Jennifer Tsang Dog licks have been considered medically beneficial to humans for millennia. In ancient Egypt, dogs were used in healing practices since they believed that dog licks help heal injury or cure disease. Fijian fishermen also allowed their dogs to lick...
Peace between Eritrea and Ethiopia, explained

Peace between Eritrea and Ethiopia, explained

By Martin Plaut This week Ethiopian Prime Minister, Abiy Ahmed visited neighbouring Eritrea, to be greeted by President Isaias Afwerki. The vast crowds that thronged the normally quiet streets of Eritrea’s capital, Asmara, were simply overjoyed. They sang and they...