Contributor Posts

NASA Astronomy Picture of the Day:

With spacecraft thrusters at top center, the rugged surface of the Moon lies below the Blue Ghost lander in this space age video frame. The view of the lunar far side was captured by the Firefly Aerospace lunar lander on February 24, following a maneuver to circularize its orbit about 100 kilometers above the lunar surface. The robotic lunar lander is scheduled to touch down tomorrow, Sunday, March 2, at 3:34am Eastern Time in the Mare Crisium impact basin on the lunar near side. In support of the Artemis campaign, Blue Ghost is set to deliver science and technology experiments to the Moon, part of NASA's Commercial Lunar Payload Services program. Blue Ghost's mission on the surface is planned to operate during the lunar daylight hours at the landing site, about 14 Earth days.

Chromo-lithograph of the cartoons exhibited by the Cincinnati Pork Packers' Association, at the 1873 Vienna World's Fair. Incorporated on this day 205 years ago, Cincinnati was also known as "Porkopolis"; this nickname came from the city's large pork interests.

Ehrgott & Krebs, Public domain, via Wikimedia Commons. View source.

NASA Astronomy Picture of the Day:

Planet Earth hangs in the background of this space age selfie. The snapshot was captured by the IM-2 Nova-C lander Athena, just after stage separation following its February 26 launch to the Moon. A tall robotic lander, Athena is scheduled to touch down on Thursday, March 6, in Mons Mouton, a plateau near the Moon’s South Pole. The intended landing site is in the central portion of one of the Artemis 3 potential landing regions. Athena carries rovers and experiments as part of NASA's Commercial Lunar Payload Services program, including a drill intended to explore beneath the lunar surface in a search for evidence of frozen water. It also carries a propulsive drone dubbed the Micro Nova Hopper. After release to the lunar surface, the autonomous drone is intended to hop into a nearby crater and send science data back to the lander.

Skull of a Smilodon populator Lund, 1842 at the Museum of Zoology of the University of São Paulo, Brazil.

Wilfredor, CC BY-SA 4.0, via Wikimedia Commons. View source.

Arthur Schopenhauer (1788 - 1860) was a German philosopher often called the “philosopher of pessimism". He is known for his 1818 work "The World as Will and Representation" (expanded in 1844), Schopenhauer was among the first philosophers in the Western tradition to share and affirm significant tenets of Indian philosophy, such as asceticism, denial of the self, and the notion of the world-as-appearance. His writings influenced later existential philosophy and Freudian psychology.

NASA Astronomy Picture of the Day:

Framed in this single, starry, telescopic field of view are two open star clusters, M35 and NGC 2158. Located within the boundaries of the constellation Gemini, they do appear to be side by side. Its stars concentrated toward the upper right, M35 is relatively nearby, though. M35 (also cataloged as NGC 2168) is a mere 2800 light-years distant, with 400 or so stars spread out over a volume about 30 light-years across. Bright blue stars frequently distinguish younger open clusters like M35, whose age is estimated at 150 million years. At lower left, NGC 2158 is about four times more distant than M35 and much more compact, shining with the more yellowish light of a population of stars over 10 times older. In general, open star clusters are found along the plane of our Milky Way Galaxy. Loosely gravitationally bound, their member stars tend to be dispersed over billions of years as the open star clusters orbit the galactic center.

Photo by Evan Tsai

Hou Yifan at the 2016 Chess Olympiad in Baku, Azerbaijan. She participated in the Chinese team which won first place in the Women's event. Hou turns 31 today.

Andreas Kontokanis from Piraeus, Greece, CC BY-SA 2.0, via Wikimedia Commons. View source.

NASA Astronomy Picture of the Day:

Do you see the ring? If you look very closely at the center of the featured galaxy NGC 6505, a ring becomes evident. It is the gravity of NGC 6505, the nearby (z = 0.042) elliptical galaxy that you can easily see, that is magnifying and distorting the image of a distant galaxy into a complete circle. To create a complete Einstein ring there must be perfect alignment of the nearby galaxy's center and part of the background galaxy. Analysis of this ring and the multiple images of the background galaxy help to determine the mass and fraction of dark matter in NGC 6505's center, as well as uncover previously unseen details in the distorted galaxy. The featured image was captured by ESA's Earth-orbiting Euclid telescope in 2023 and released earlier this month.

Photo by ESA, NASA, Euclid Consortium; Processing: J.-C. Cuillandre, G. Anselmi, T. Li