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Northern Lights from Space, NASA

Ten thousand years ago, before the dawn of recorded human history, a new light would have suddenly have appeared in the night sky and faded after a few weeks. Today we know this light was from a supernova, or exploding star, and record the expanding debris cloud as the Veil Nebula, a supernova remnant. This sharp telescopic view is centered on a western segment of the Veil Nebula cataloged as NGC 6960 but less formally known as the Witch's Broom Nebula.

What if the other planets were as close as the moon?

Individual images taken of Venus in one year to create a full curve. The summer solstice being at the top, winter solstice at the bottom, and equinox where the lines cross

The ice fountains of Enceladus Fountains of water ice blast thousands of kilometres above the surface of Saturn's tiny moon Enceladus. It is thought that the pull of Saturn's powerful gravity distorts the moon and heats the interior, forming an underground ocean. When this reservoir of water contacts the vacuum of space it vaporises and explodes above the moon. Any liquid water freezes instantly. Images of the ice fountains were first captured by the Cassini probe.

Clouds Of Perseus

The “Black Widow” pulsar is moving through the galaxy at a speed of almost a million kilometers per hour. A bow shock wave due to this motion is visible to optical telescopes, shown in this image as the greenish crescent shape. The pressure behind the bow shock creates a second shock wave that sweeps the cloud of high-energy particles back from the pulsar to form the cocoon.

The Shackleton Crater on the lunar South Pole

Saturn's moons Dione and Tethys are caught in a celestial tango (Image: NASA/JPL/Space Science Institute)

Lunar crater Linné, (27.7°N, 11.8°E)

Jupiter, Io and Ganymede 2010.

Jupiter's moon Io is intensely yellow from sulfur and molten silicate rock. Its pocked surface is due to young, active volcanoes.