Global #Sea #Ice Just Hit a #Record Low : Medium

Trillions of #Comets #Discovered #Orbiting #Alien #Planet systems (image) : Space.com

#Elusive phase change finally spotted in a #Quantum #Simulator : New Sci

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#NASA 📆 April 2020 #Micrometeoroids and #SpaceDebris will strike an #orbiting Station throughout its lifetime, as is evident on the #ISS, where several #solar arrays show #damage caused by micrometeoroids. The #hope is that the #meteoroids will not hit any #critical areas and cause #emergency #evacuation of the structure. Damage from meteoroids may include damage to #habitation 💤 modules.
#Welding is one of the best ways to create hermetic seals. The ability to #weld these structures without waiting for new equipment may limit the #risks to #astronauts in the event of damage.This ability for rapid #repair may also become more significant as orbiting Stations such as #Gateway move further from #Earth and the associated #cost of shipping parts increases. It is important to #develop these technologies now.

#NASA has recently funded work on #development of #spacewelding 🎇 capabilities https://ntrs.nasa.gov/api/citations/20200002259/downloads/20200002259.pdf

#HumanSpaceflightSecurity #SpaceMaintenance #SpaceAgency #SpaceStation

Repeating a question posed by Érdi Gergő initially on why the daylight in Singapore is already more than 12 hours before the equinox, we are now surprised to see the daylight length is always more than 12 hours in Singapore. Why is this? Equatorial bulge? 1⁰N and the right eccentricity?

#orbiting #eccentricity #equinox #astronomy #askmastodon #spacescience