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Soyuz vs Supermoon (Astronomy Picture of the Day RSS Feed)

Soyuz vs Supermoon

This planetary nebula, Mz3, is being cast off by a star similar to our Sun. The 1000-kilometer per second speed of the expelled gas, the light-year long length of the structure, and the magnetism of the star visible at the nebula's center, all imply Mz3 is hiding a second, dimmer star that orbits close in to the bright star. A competing hypothesis holds that the central star's own spin and magnetic field are channeling the gas. (ESA, NASA's Hubble, JPL-CalTech)


Io (moon) Jupiter Discovery Discovered by Galileo Galilei Discovery date January 8, 1610[1] Designations Alternative names Jupiter I Adjective Ionian Orbital characteristics Periapsis 420000 km (0.002807 AU) Apoapsis 423400 km (0.002830 AU) Mean orbit radius 421700 km (0.002819 AU) Eccentricity 0.0041 Orbital period 1.769137786 d (152853.5047 s, 42.45930686 h) Average orbital speed 17.334 km/s Inclination 2.21° (to the ecliptic) 0.05° (to Jupiter's equator) Satellite of Jupiter Physical…


Redstone-Mercury: yes, Shepard and Grissom rode that tiny thing into space. Couldn't even reach orbital speed.


The Shocking Behavior of a Speedy Star | Roguish runaway stars can have a big impact on their surroundings as they plunge through the Milky Way galaxy. Their high-speed encounters shock the galaxy, creating arcs, as seen in this newly released image from NASA’s Spitzer Space Telescope.