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Dynetics to use in-space refueling for NASA lunar lander – SpaceNews

The Artemis lunar lander under development by Dynetics will use of in-space refueling of cryogenic propellants and require three launches.

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WASHINGTON The lunar lander under development by Dynetics for NASAs Artemis program will make use of in-space refueling of cryogenic propellants and require three launches in quick succession, company officials revealed.
In a Sept. 15 webinar held by Dynetics in cooperation with the American Institute for Aeronautics and Astronautics, the company discussed the overall architecture for the lander it is developing as part of NASAs Human Landing System (HLS) program. Dynetics is one of three compa…

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Astronauts emerge from shelter after ‘avoidance maneuver’ successful – KLTV

Astronauts aboard the International Space Station have emerged from their ‘safe haven’ after taking shelter inside their Soyuz spacecraft as an unknown piece of…

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(KLTV) – Astronauts aboard the International Space Station have emerged from their safe haven after taking shelter inside their Soyuz spacecraft as an unknown piece of space debris approached the orbiting outpost.
According to NASA, the object was expected to pass within .8 of a mile of the space station Tuesday afternoon.
Around 4:19 p.m., the Russian Progress 75 resupply spacecraft docked to the ISS conducted an avoidance maneuver, firing its thrusters for 150 seconds.
According to NASA Adm…

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NASA serves up a breathtaking view of a shadow cast on Jupiter – CNET

NASA’s Juno spacecraft watches as Jupiter’s moon Io leaves a fleeting mark on the gas giant.

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The sun enlisted Io’s help to stage a shadow play on Jupiter.
NASA/JPL-Caltech/SwRI/MSSS/Kevin M. Gill (CC-BY)
We’re all familiar with Jupiter’s Great Red Spot storm, but sometimes the planet gets to wear a different kind of spot. NASA’s Juno mission captured a spectacular view of the gas giant’s moon Io casting a round shadow onto Jupiter’s swirling storms.
“As with solar eclipses on the Earth, within the dark circle racing across Jupiter’s cloud tops one would witness a full solar eclipse a…

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Evaporation Critical to Coronavirus Transmission As Weather Changes: Effects of Humidity, Temperature, and Wind on COVID-19 – SciTechDaily

Impact of evaporation on virus survival, concentration, transmission. As COVID-19 cases continue to rise worldwide, it is increasingly urgent to understand how …

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Weather impact on virus transmission. Effect of relative humidity (RH=10%, 50%, and 90%) on coronavirus respiratory droplet cloud at temperature 30 C and wind speed of 4 kph. Wind direction is from left to right. Credit: Talib Dbouk and Dimitris Drikakis
Impact of evaporation on virus survival, concentration, transmission.
As COVID-19 cases continue to rise worldwide, it is increasingly urgent to understand how climate impacts the continued spread of the coronavirus, particularly as winter vir…

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