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New Frontiers: U.S. Space Force, Zenno, and SpaceX Propel the Next Era of Space Innovation

The US Space Force is making headlines by awarding contracts to Viasat and Intelsat for new anti-jam communication satellites. These are part of a program to develop a jam-resistant satellite communication fleet, and it’s a pretty big investment—we’re talking hundreds of millions of dollars.On a global scale, there's some exciting news from Zenno Astronautics—they've become the first company to operate a superconducting product in space, which is a huge leap for space infrastructure technology.And if we zoom in a bit, there’s also a lot of buzz around SpaceX and its recent IPO. The company's shares have been soaring, and it’s causing a lot of excitement in the market.It’s definitely an exciting time in space industry! 
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First high-resolution look at the quiet Sun with ALMA at 3 mm

Observations of the radio continuum at millimeter (mm) wavelengths provide a unique chromospheric diagnostic. The quiet sun mm-wavelength emission mechanism is free-free and electrons are almost always in local thermodynamic equilibrium (e.g. Shibasaki et al. 2011 and Wedemeyer et al. 2016). The availability of mm-wavelength solar observations with ALMA can advance our knowledge on the chromosphere because of the instrument's unique spatial resolution and sensitivity. In a previous study, the researchers used ALMA full-disk (FD) commissioning data to study the quiet sun under low resolution. However, publications of results from ALMA high-resolution quiet sun observations are rare. The results have recently performed the analysis of such observations; results are reported in Nindos et al. (2018).

from Astronomy News - Space News, Exploration News, Earth Science News, Earth Science https://ift.tt/2E4fCyV
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