- The Little Dumbbell Nebula, also known as Messier 76, NGC 650/651, the Barbell Nebula, or the Cork Nebula, is a planetary nebula in the northern constellation of Perseus. It was discovered by Pierre Méchain in 1780 and included in Charles Messier’s catalog of comet-like objects as number 76. It was first classified as a planetary nebula in 1918 by the astronomer Heber Doust Curtis. However, others might have previously recognized it as a planetary nebula; for example, William Huggins found its spectrum indicated it was a nebula (instead of a galaxy or a star cluster); and Isaac Roberts in 1891 suggested that M76 might be similar to the Ring Nebula (M57), as seen instead from the side view.
- Perseus (constellation) (Wikipedia)
Perseus is a constellation in the northern sky, being named after the Greek mythological hero Perseus. It is one of the 48 ancient constellations listed by the 2nd-century astronomer Ptolemy, and among the 88 modern constellations defined by the International Astronomical Union (IAU). It is located near several other constellations named after ancient Greek legends surrounding Perseus, including Andromeda to the west and Cassiopeia to the north. Perseus is also bordered by Aries and Taurus to the south, Auriga to the east, Camelopardalis to the north, and Triangulum to the west. Some star atlases during the early 19th century also depicted Perseus holding the disembodied head of Medusa, whose asterism was named together as Perseus et Caput Medusae; however, this never came into popular usage.
- Centipede (Atari 2600) online game (atarionline.org)
In Atari 2600 Centipede, the main objective is to shoot all the segments of a centipede as it winds its way down the playing field. The centipede moves horizontally across the screen, and when it hits a mushroom or the edge of the screen, it drops down one row and changes direction. The player controls a small bug blaster at the bottom of the screen, firing shots at the centipede and other enemies such as spiders, scorpions, and fleas. (Millipede, released in 1982, is the arcade sequel to Centipede. It features more gameplay variety and a wider array of insects than the original game.)