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    Another Webb Telescope Instrument Gets the “Go for Science”

    In this illustration, the multilayered sunshield on NASA’s James Webb Space Telescope stretches out beneath the observatory’s honeycomb mirror

    The second of NASA's James Webb Space Telescope's four primary scientific instruments, known as the Mid-Infrared instrument (MIRI), has concluded its postlaunch preparations and is now ready for science. The last MIRI mode to be checked off was its coronagraphic imaging capability, which uses two different styles of masks to intentionally block starlight from hitting …

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    Webb’s NIRISS Ready to See Cosmos in Over 2,000 Infrared Colors

    One of the James Webb Space Telescope's four primary scientific instruments, known as the Near-Infrared Imager and Slitless Spectrograph instrument (NIRISS), has concluded its postlaunch preparations and is now ready for science. The last NIRISS mode to be checked off before the instrument was declared ready to begin scientific operations was the Single Object Slitless …

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    Webb’s NIRSpec Acquires Multiple Targets

    A simulation of the NIRSpec MSA-based Target acquisition, showing reference stars

    The Webb team has now approved 10 out of 17 science instrument modes; since last week we added (14) MIRI imaging, (2) NIRCam wide-field slitless spectroscopy, and our final NIRISS mode, (10) single-object slitless spectroscopy. As we ramp down the final commissioning activities, some openings in the schedule have appeared. The team has started to …

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    Psyche Mission Update

    NASA's Psyche mission team continues to assess ongoing issues with the spacecraft's flight software. The team is evaluating its ability to meet a schedule to launch in 2022 – the current launch period is Sept. 20 to Oct. 11. If it is determined that launch in 2022 is not possible, a full range of actions …

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    NASA InSight’s Power Level as of June 19, 2022

    More information about InSight's power level will be available here in the weeks ahead. On June 19, 2022, InSight was generating an average of 410 watt-hours of energy per Martian day, or sol. The tau, or level of dust cover in the atmosphere, was estimated at 1.12 (typical tau levels outside of dust season range …

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    Webb’s Mid-Infrared Spectroscopy Will Reveal Molecules, Elements

    NASA's James Webb Space Telescope team continues to work its way through the 17 science instrument modes. This week they checked off numbers (5) NIRCam grism time series and (4) imaging time series, both used to study exoplanets and other time-variable sources; (12) NIRISS aperture masking interferometry mode, for direct detection of a faint object …

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    Solar Flares FAQs

    An image of the Sun, with a flare exploding. Earth is shown to scale, smaller than the flare.

    Have questions about solar flares? Find answers here! What is a solar flare? A solar flare is an intense burst of radiation, or light, on the Sun. Flares are our solar system's most powerful explosive events – the most powerful flares have the energy equivalent of a billion hydrogen bombs, enough energy to power the …

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    Scheduling Webb’s Science

    In this illustration, the multilayered sunshield on NASA’s James Webb Space Telescope stretches out beneath the observatory’s honeycomb mirror

    In the lead-up to the release of Webb's first full-color images and spectroscopic data on July 12, the Webb team is now in the last phase of commissioning the science instruments. The first two instrument modes, NIRCam imaging and NIRISS imaging, have been declared ready for science; watch the "Where is Webb" page as the team …

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    Webb: Engineered to Endure Micrometeoroid Impacts

    In this illustration, the multilayered sunshield on NASA’s James Webb Space Telescope stretches out beneath the observatory’s honeycomb mirror

    Micrometeoroid strikes are an unavoidable aspect of operating any spacecraft, which routinely sustain many impacts over the course of long and productive science missions in space. Between May 23 and 25, NASA's James Webb Space Telescope sustained an impact to one of its primary mirror segments. After initial assessments, the team found the telescope is …

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