A Flaming 'Jack-o-Lantern' in Space
Monday, October 29, 2018: Magnetic activity on the surface of the sun creates the appearance of a spooky face in this ultraviolet image taken by NASA's Solar Dynamics Observatory on Oct. 8, 2014. These features appear brighter than their surroundings, because hotspots of magnetic fields emit more light and energy than their surroundings. — Hanneke Weitering
RIP, Cassini
Tuesday, October 30, 2018: A pumpkin dressed up as the planet Saturn gobbles down a small replica of the Cassini spacecraft in this photo from NASA's annual pumpkin carving contest at the Jet Propulsion Laboratory in Pasadena, California. The Cassini spacecraft executed a "death dive" into Saturn on Sept. 15, 2017. — Hanneke Weitering
The Ghost of Cassiopeia
Wednesday, October 31, 2018: Lurking 550 light-years away from Earth in the constellation Cassiopeia is the spooky nebula IC 63, commonly known as the Ghost of Cassiopeia. This image from the Hubble Space Telescope shows the nebula's long, flowing veils of interstellar dust, which glow by reflecting light from nearby stars. — Hanneke Weitering