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Scientists weigh up stratospheric sunlight barrier to curb warming LONDON, Nov 23 (Reuters) - Spraying sun-dimming chemicals high above the Earth to slow global warming could be "remarkably inexpensive", costing about $2.25 billion a year over a 15-year period, according to a study by U.S.
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NASA counts down to landing of Martian quake-sensor, InSight Tampa (AFP) - NASA is counting down to a nail-biting touchdown Monday of the $993 million Mars InSight, the first spacecraft to listen for quakes and study the inner workings of another rocky planet.
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ISS microbes should be monitored to avoid threat to astronaut health Strains of the bacterium Enterobacter, similar to newly found opportunistic infectious organisms seen in a few hospital settings, have been identified on the International Space Station (ISS).
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| What magnetic fields can tell us about life on other planets Every school kid knows that Earth has a magnetic field - it's what makes compasses align north-south and lets us navigate the oceans.
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