Rune S och jag tog en ”gubb-tur” i dag. Under en vattenpaus vid Slätta damm spanade jag in familjen Talgoxar. Nere vid älvstranden kröp vi genom staketet för att få en bild av Hisingsbron.
Just as avalanches on snowy mountains start with the movement of a small quantity of snow, the ESA-led Solar Orbiter spacecraft has discovered that a solar flare is triggered by initially weak disturbances that quickly become more violent. This rapidly evolving process creates a ‘sky’ of raining plasma blobs that continue to fall even after […]
To land on the right foot on the Red Planet, European engineers have been dropping a skeleton of the four-legged ExoMars descent module at various speeds and heights on simulated martian surfaces.