Traces

Giant Map Reveals Ancient Traces of Water on Mars Everywhere We Look

Giant Map Reveals Ancient Traces of Water on Mars Everywhere We Look

A new map, years in the making, reveals where we can find ancient traces of water on Mars. Using data collected over the past decade by ESA’s Mars Express and NASA’s Mars Reconnaissance Orbiter, both currently in orbit around the red planet, scientists have created the most comprehensive map yet of specific Martian mineral deposits. …

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New York Polio Case Now Connected to Traces of Virus Found in UK and Israel

New York Polio Case Now Connected to Traces of Virus Found in UK and Israel

ProPublica is a nonprofit newsroom that investigates abuses of power. Sign up to receive our biggest stories as soon as they’re published. Public health officials’ international hunt for clues in the case of polio that paralyzed a New York man has turned up a big one: The virus that infected him matches the genetic fingerprint …

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Mars spacecraft may have to dig deeper than thought to find traces of life

Mars spacecraft may have to dig deeper than thought to find traces of life

Mars rovers may have to dig deeper to find signs of ancient life. New research shows that certain protein-building amino acids that could be evidence of ancient life on Mars are more susceptible to radiation than scientists thought, meaning any amino acids left by life-forms might have only survived if they were buried deep beneath …

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Traces of highly contagious poliovirus found in British sewage

Traces of highly contagious poliovirus found in British sewage

Placeholder while article actions load LONDON — The United Kingdom has declared a rare “national incident” after traces of the highly contagious poliovirus were found in sewage in London, the government said. Britain, like many developed nations, has been largely polio-free since the 1980s because of a high rate of vaccination. So far, no cases …

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