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Thermal shield testing on Webb's MIRI

( —NASA engineer Acey Herrera recently checked out copper test wires inside the thermal shield of the Mid-Infrared Instrument, known as MIRI, that will fly aboard NASA's James Webb Space Telescope. The shield is ...

dateMay 09, 2013 in Space Exploration
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Probing Question: Are we running out of helium?

Party planners, take note: the atmosphere may become a little deflated at gala events in the future. Some scientists are sounding the alarm about the wastefulness of using helium—a rare, non-renewable gas—to fill party ...

dateApr 26, 2013 in Earth Sciences
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Heating the solar wind

( —The Sun glows with a surface temperature of about 5500 degrees Celsius. Meanwhile its hot outer layer (the corona) has a temperature of over a million degrees, and ejects a wind of charged particles at a rate ...

dateApr 03, 2013 in Space Exploration
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