The Helix Nebula

The Helix Nebula (aka NGC 7293) is a large planetary nebula located in the constellation Aquarius. It’s about 700 light-years away. The Helix Nebula has sometimes been referred to as the “Eye of God.” Tolkien fans have occasionally called it the “Eye of Sauron”

This animation of a 3-D model was created from Hubble Space Telescope and ground-based data of the Helix Nebula.

Credit: NASA, ESA, and G. Bacon (STScI)

Uranus is Weird

Back 1986, Voyager 2 flew by the planet Uranus and gave us our only set of closeup data so far. Recently, that flyby data has shown us the Uranus is even stranger than we thought.

The planet’s rotational axis is tipped over almost 90 degrees, and the Voyager data has revealed that its magnetic axis points about 60 degrees away from the rotational axis. The planet’s magnetosphere wobbles around, and to date, no one has come up with a reasonable explanation of for the odd offset.

Image Credit: NASA