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World leaders and policy experts at the outset of the COVID-19 pandemic feared that the health crisis might make the world more dangerous. They worried specifically that terrorist organizations like the Islamic State group ...
Betalains are a class of plant pigments that are responsible for the characteristic red-violet (betacyanin) or yellow (betaxanthin) color of certain fruits and vegetables. These naturally occurring, water-soluble, and nitrogen-containing ...
A group of US scientists this week proposed an unorthodox scheme to combat global warming: creating large clouds of moon dust in space to reflect sunlight and cool the Earth.
Galaxies fill a lot of roles in the universe. The most obvious one is star formation factories. Without that activity, the cosmos would be a very different place. The European Southern Observatory and the Atacama Large Millimeter ...
Driven by concerns over space debris, in late November the French Ministry for the Armed Forces formally committed not to conduct anti-satellite missile tests. And yet, France's space strategy of 2019 resolved to "toughen" ...
The war in Ukraine is shaping up to be one of the bloodiest of the 21st century, with both sides reported to be losing hundreds of soldiers each day as the conflict moves towards its first anniversary. But quite how many ...
Thousands of women have voluntarily joined Ukraine's armed forces since 2014, when Russia's occupation of Crimea and territories in eastern Ukraine began. Over the past nine years, the number of women serving in the Ukrainian ...
One of the main jobs for the Perseverance Mars rover past few weeks has been collecting carefully selected samples of Mars rock and soil. These samples have been placed and sealed in special sample tubes and left in well-identified ...
The mission to return Martian samples back to Earth will use a European 2.5 meter-long robotic arm to pick up tubes filled with precious soil from Mars and transfer them to a rocket for an historic interplanetary delivery.
Autocrats and dictators quickly acquire new arms technologies from abroad and often use them against their own citizens. Now a study of multiple nations during the period 1820–2010 shows that the spread of military technologies ...
