No aliens? Astronomer says that’s so pessimistic

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Well, scientists don’t like to use the term “aliens,” but that is a decent summary. In SETI—the search for extraterrestrial intelligence—one normally thinks about the actual problem of communication. And so you want to...
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Scientists search for coronavirus-resistant people: could it be you?

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An international team of researchers is looking for people with possible resistance to the coronavirus to study their genes. Given the severity of the pandemic we are still going through, it sounds like a...
Types of dogs

There were 5 types of dogs 11,000 years ago

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Researchers looked at dog DNA going back to a period immediately following the last ice age to learn about movement and patterns of ancient dogs and their relationship with humans. By sequencing the DNA of...

New satellite to measure plant health

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ESA plans to track the health of the world’s vegetation by detecting and measuring the faint glow that plants give off as they convert sunlight and the atmosphere’s carbon dioxide into energy. Yielding information about...

Nine out of 10 people around the world breathe contaminated air

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The WHO estimates that around 7 million people die each year from exposure to fine airborne particles that penetrate deep into the lungs and cardiovascular system, causing diseases such as stroke, heart disease, lung...

Teeth alter date of grassy diet for pre-humans

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Fossilized teeth suggest that our primate ancestors began adding grass-based food to their diets about 400,000 years earlier than experts once thought. The finding means early hominins took this important step—one of several in that...

‘Alien’ genome reveals octopus secrets

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Scientists have discovered striking differences between the octopus and other invertebrates. The fist whole genome analysis of an octopus also reveals widespread genomic rearrangements and a dramatic expansion of a family of genes involved in...
Trees

How many species of trees are there on Earth?

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More than 73,000 species of trees worldwide, 14 per cent more than previously thought. 9,000 of which have yet to be discovered. How many species populate the earth is one of the most fundamental questions...

Closer look debunks ‘pause’ in global warming

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The hiatus in the recent rate of global warming you may have heard about didn’t really happen, say researchers. The apparent lull is actually an artifact arising from faulty statistical methods, they report in Climatic Change. The study...

Drought can kill trees for years and years

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The fact that drought kills trees is well known. But a new study of nearly 29,000 trees at two research forests in North Carolina shows the effects can be far more long-lasting than experts...

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