A dying star throws a cosmic tantrum in this combined image from Nasa's Spitzer Space Telescope and the Galaxy Evolution Explorer. The star's dusty outer layers are unraveling into space, glowing from the intense ultraviolet radiation being pumped out by the hot stellar core. This object, called the Helix nebula, lies 650 light years away in the constellation of Aquarius
Introduce or help your students review Layers of the Earth with this PowerPoint presentation and student notes pages. The resource covers all of the layers of the Earth: Crust, Mantle, Outer Core, and Inner Core.
What would it be like to take a journey to the center of the earth? Well, you'd travel through the Earth's four concentric layers: inner core, outer core, mantle and crust. The crust is the outer layer of the earth. It is a thin layer between 0-60 km thick. The crust is the solid rock…
The largest known structure in the universe, a clump of active galactic cores that stretch 4 billion light-years from end to end. The structure is a light quasar group (LQG), a collection of extremely luminous Galactic Nulcei powered by supermassive central black holes. #Space #Stars #Astronomy