ALT Text at the top of this graphic reads: NASA’s Astrophoto Challenge. At the bottom, text reads: Cassiopeia A – Last Week! At the center is an image of Cassiopeia A, a large circular-shaped cloud of gas and dust with complex structure. It appears in a mix of blues, light purples, white, and orange hues. Around and within the nebula, there are various stars seen as points of orange light.

ALT A group of women working to process astronomical data at Harvard College Observatory in May 1925, including Annie Jump Cannon (fifth from left) and Cecilia Payne-Gaposchkin (fifth from right). (Courtesy: Harvard University Archives)

ALT Student Annie Jump Cannon looks through a telescope outside College Hall on the Wellesley Campus. Annie Jump Cannon, ’84. (1880-1884). Wellesley College. https://jstor.org/stable/community.2546514

ALT Annie Jump Cannon's work with Spectra on glass plates. Source: Wargelin, M. (2018). Photograph of Plate i38727(1914). Center for Astrophysics | Harvard & Smithsonian, Photographic Glass Plate Collection, Cambridge, MA.

ALT Two MicroObservatory Telescopes in front of mountains at Whipple Observatory.

ALT Processed image of the Phantom Galaxy in purples and orange. Title text overlay: Spiraling into infinity by Aiden M.

ALT Processed image of the Phantom Galaxy in white and gold. Title text overlay: Chiaroscuro by Arsh V.

ALT An array of Phantom Galaxy images, each uniquely processed.

ALT An array of Phantom Galaxy images, each uniquely processed.

ALT An array of Phantom Galaxy images, each uniquely processed.

ALT An array of Phantom Galaxy images, each uniquely processed.