nasa.gov
Looking Forward to the Moonhttps://www.nasa.gov/image-article/looking-forward-to-the-moon/On May 8, 2022, NASA’s Exploration Ground Systems’ Program Manager Shawn Quinn captured this crop of a full frame image of the Hadley–Apennine region of Earth’s Moon including the Apollo 15 landing site (very near the edge of the shadow of one of the lunar mountains in the area). Building upon the pioneers from the […]Jul 30, 2025 1:13 PM
nasa.gov
Photophoretic Propulsion Enabling Mesosphere Explorationhttps://www.nasa.gov/directorates/stmd/niac/photophoretic-propulsion-enabling-mesosphere-exploration-2/Igor BargatinUniversity of Pennsylvania We propose to use the photophoretic levitation and propulsion mechanism to create no-moving-parts flying vehicles that can be used to explore Earth’s upper atmosphere. The photophoretic force arises when a solid is heated relative to the ambient gas through illumination, inducing momentum exchange between the solid and the gas. The force […]May 27, 2025 3:37 PM
europeanspaceflight.com
European Launch Startups Send Open Letter to ESA Outlining Key Prioritieshttps://europeanspaceflight.com/european-launch-startups-send-open-letter-to-esa-outlining-key-priorities/Six European launch startups have penned and released an open letter to ESA outlining key priorities they urge the agency to consider when implementing the European Launch Challenge. Below is the full, unedited text of the letter. You can read more about the European launcher Challenge here. Strengthening Europe’s Launch Industry Key Priorities to Shape […] The post European Launch Startups Send Open Letter to ESA Outlining Key Priorities appeared first on European Spaceflight.Jan 24, 2025 2:19 PM
nasa.gov
Cutting-Edge Satellite Tracks Lake Water Levels in Ohio River Basinhttps://www.nasa.gov/missions/swot/cutting-edge-satellite-tracks-lake-water-levels-in-ohio-river-basin/Data from the U.S.-European Surface Water and Ocean Topography mission gives researchers a detailed look at lakes and reservoirs in a U.S. watershed. The Ohio River Basin stretches from Pennsylvania to Illinois and contains a system of reservoirs, lakes, and rivers that drains an area almost as large as France. Researchers with the SWOT (Surface […]Dec 17, 2024 8:27 PM
nasa.gov
SARP East 2024 Hydroecology Grouphttps://www.nasa.gov/general/sarp-east-2024-hydroecology-group/Faculty Advisors: Dr. Dom Ciruzzi, College of William & Mary Graduate Mentor: Marley Majetic, Pennsylvania State University Marley Majetic, Graduate Mentor Jordan DiPrima How are different land cover types affected by land subsidence on the U.S. Atlantic Coast? Jordan DiPrima, University of New Hampshire Land subsidence is a frequently overlooked geologic hazard that is caused […]Nov 22, 2024 10:33 PM
news.google.com
Bog Post 0.7 – The big wammy – Anarah's Workbookhttps://news.google.com/rss/articles/CBMif0FVX3lxTE9MVnVFU0VrekVGN1VqYUx3S1JWdGQ4cHlONlVDWlJyeXl5dmI4ZWFobTd5d3AyejVXOFNmanozekh5TzJVNHFSMzhhUi1YdmdFNVpBdHBla1hYelVESVB4MUphYVZqeE5ESXc5SGJFTmhfNVFVRkxvMC1KNFJQWTA?oc=5Bog Post 0.7 – The big wammy – Anarah's Workbook The Pennsylvania State UniversityOct 21, 2024 7:00 AM
news.google.com
After Butler rally failures, Trump rally gives Pa. law enforcement a new testhttps://news.google.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?oc=5After Butler rally failures, Trump rally gives Pa. law enforcement a new test PennLive.comJul 27, 2024 7:00 AM
news.ycombinator.com
Sports Math at U.S. Collegeshttps://news.ycombinator.com/item?id=25095980College coaches are supposedly big on math. Each week, college football coaches vote for the best teams in the country. It is fairly common to see some teams get ranked below other teams with more losses. This is often explained by strength of schedule. There are complicated algorithms attempting to calculate a team's strength of schedule.But do any of the coaches (or their proxies) who vote understand those algorithms? Can any of them explain why 3-0 Ohio State is ranked #3? OSU has beaten 0-3 Penn State, 1-2 Nebraska (whos only win was against Penn State) and 1-2 Rutgers. Is that really a stronger schedule than 7-1 Clemson (only loss to #2 Notre Dame), or 6-0 Cincinnati's? Or 5-1 Texas A&M's (loss to #1 Alabama, win against #4 Florida) or 8-0 BYU with a win against #21 Boise State?How is beating Penn State and Nebraska mathematically more impressive than beating Florida or Boise State?Can HN explain the math?Nov 14, 2020 9:53 PM
