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Eric Bellm

@ebellm.bsky.social

Astronomer at the University of Washington. Building time-domain surveys (ZTF & Rubin Observatory) & looking for compact objects in our Galaxy.

259 Posts559 Follower276 Folgt
Timothy Burke@bubbaprog.xyz · 4d ago

the NCAA is *restoring back*, not adding, the fair catch kick to the rulebook (absent since 1949). the right to a free kick (even after time had expired!) after making a fair catch predates nearly all other rules in every code of non-soccer football, including how many downs/tackles you got

As to "three consecutive fairs and downs" I take the proper interpretation of the last two or three years to have established a precedent in favor of counting a kick off or kick out or fair catch kick as number one in the three consecutive attempts to advance the ball provided it is played in the way so common now and which to all intents and purposes resembles a down or fair. Also I would say that the point from which to count the advance is the point at which the ball is put in play and not the twenty-five yard line nor the ten yard line from the center. If in kicking out a side chooses to put the ball in play on the fifteen yard line and in three attempts have worked it past the twenty yard line it still belongs to them, because they have made five yards from the point where the ball was put in play.from the goal. Directly after this the Huddersfield captain made a long, brilliant run, and grounded the ball amid great enthusiasm behind the Rangers' goal line. The try at goal was a very difficult one; the place kick was entrusted to the captain—the shot missed, and then half-time was called, but the ball had not gone out of play, for it had swerved round to Wheatley, who was waiting opposite the goal. He took his drop at the goal, sending the ball over the cross-bar. The point was hailed with great enthusiasm, but it was disputed, as the Rangers said half-time had been called by the umpires. Both umpires at first seemed to agree that no goal had been scored, but Rule 60, which says "Neither half-time nor no side shall be called until the ball is fairly held, or goes out of play, and in the case of a try or fair catch the kick at goal shall be allowed," was quoted, but no decision could be arrived at. We believe that a case has been sent up to the editor of The Field for decision, to serve as precedent in similar moot points in the future. When half-time was called the ball was fairly held, and was not out of play, and it therefore seems to us that the point was legitimately obtained.6. Any player catching the ball directly from the foot or leg on or below the knee of another player, may call "mark:" he then has a free kick from any spot in a line with his mark and the centre of his opponent's goal post. No player being allowed to come inside the spot marked, or within five yards in any other direction.is pretty clearly indicated. In the Har- vard and Yale games, Princeton scored a total of thirteen points from one touchdown and goal and two drop-kick goals. The Tigers lost twenty-three points from two touchdowns and goals and two drop-kick and one fair catch place-kick goals. Harvard played a practice management.
Timothy Burke@bubbaprog.xyz · 4d ago

YES YES YES YES YES please do not inform me of any other rule changes which I'm sure were not passed and which will in no way make the game worse

Costa Samaras@costasamaras.com · 2w ago

This misunderstands the role of private vs. public R&D. Private R&D is great but is connected to R&D tax exemptions, & often doesn't spill out into the public domain. There's a notion we can ramp federal R&D spending down & be competitive. We can’t & we shouldn’t. www.whitehouse.gov/releases/202...

OSTP Director Releases Landmark Report and Recommendations for Renewing American Scientific Discovery

WASHINGTON, DC – Today, Assistant to the President and Director of the White House Office of Science and Technology Policy (OSTP) Michael Kratsios

whitehouse.gov

Quantian@quantian.bsky.social · 3w ago

Eighty years of American science is bleeding out from bullet wounds on the sidewalk and these mfs are sitting inside talking about whether we should force 18 year olds rake leaves in national parks

Daniel Drezner@dandrezner.bsky.social · 3w ago

Klein asks Allen what liberals should prioritize if they win the trifecta in 2028. Allen suggests the following: 1) Putting an end to Citizens United; 2) Creation of national service; 3) Ending gerrymandering

Eric Bellm@ebellm.bsky.social · last mo.

@vrubinobs.bsky.social's ten year LSST survey 🔭 has begun! Here's a nice article by @danclery.bsky.social at @science.org with quotes from yours truly! www.science.org/content/arti...

Rubin observatory begins a 10-year movie of the changing universe

World’s biggest digital camera will repeatedly scan the sky, spotting cosmic explosions while building up a deep map of billions of galaxies

science.org

NSF–DOE Rubin Observatory@vrubinobs.bsky.social · last mo.

The moment we've all been waiting for is finally here… On June 29, 2026, NSF–DOE Rubin Observatory officially began the Legacy Survey of Space and Time (LSST)! 🔭🧪☄️🌌 🔗: rubinobservatory.org/news/action-...

Isabel@isabelott.bsky.social · 2mo ago

An interesting thread from a month ago that predicted exactly what we’re seeing in the reflecting pool now (peeling up, prolific microbial activity)

The Monarch Diaries@monarchdiaries.bsky.social · 3mo ago

HAHAHAhaha! they're making the world's biggest synthetic scum pond!!! The coating is a polyurea used inside pipes. It gels in about 3 seconds, making it non self-leveling. The texture is like an orange peel, the perfect substrate for biofilms. www.nytimes.com/2026/05/19/u...

Mel Andrews@bayesianboy.bsky.social · 2mo ago

When utilized in literature review, LLMs consistently 1. fail to mention female authors in female-led literatures, 2. insist that men are more influential or more heavily cited when this is contradicted by objective citation counts, and 3. attribute women’s work to hallucinated male scholars.

rahaeli@rahaeli.bsky.social · 2mo ago

This is, in fact, a major reason why teenagers hide bad things that happen to them online now: because they're scared their parents will take away the only third space we have left them!

Joshua Sokol@joshuasokol.bsky.social · 2mo ago

What is the value of human beings studying the cosmos? For @michaelgreshko.bsky.social at Science, I dug into how practitioners of humanity's oldest exact science are metabolizing the latest developments in AI...and how it seems to be forcing them to wrestle with philosophical questions.

Amid a flood of AI advances, astrophysicists are questioning the soul of their field

Researchers see enormous power in new tools—but also the potential end of astrophysics as a human endeavor

science.org

Eric Bellm@ebellm.bsky.social · 2mo ago

@vrubinobs.bsky.social has started observing 🔭 — and we're hiring! Rubin's Data Management team is looking for two Research Scientists to join us at the University of Washington @dirac-institute.bsky.social. Come help build the software that turns Rubin images into discoveries! ls.st/uw-dm-26

Research Scientist/Engineer 3

Job Description The Department of Astronomy has an outstanding opportunity for a Research Scientist/Engineer 3 position to join their team. Two positions available. The Vera C. Rubin Observatory Alert Production group within the Data Intensive Research in Astrophysics and Cosmology (DIRAC) Institute at the University of Washington invites applications for a research scientist to join us in Seattle to develop and operate its real-time astronomical data-processing pipelines. This position is based in Seattle, WA. About this Opportunity The Rubin Observatory has begun observations and will soon undertake a decade-long astronomical survey, the Legacy Survey of Space and Time (LSST; http://lsst.org). It will observe half the sky every three nights, detect seven million transient events nightly, and generate more than 6 petabytes of data per year. Its catalogs will include data for about 40 billion objects. The University of Washington is leading the development and operations of the software pipelines that will analyze LSST's images in near-real time, detect millions of transient, variable and moving objects — and alert the world about them. We are looking for a research scientist to work within the Alert Production team and across the wider Rubin Data Management project. In this position you will help develop and operate important elements of the LSST data processing algorithms and software (including work on image differencing, coadded image template generation, object classification, and alert streaming). Twenty percent of your time will be available for original research. Key Responsibilities Algorithm and Software Development (40%): Develop, implement, and test elements of the LSST data processing algorithms and software pipelines, with an emphasis on scientific rigor and computational performance. Work may include image differencing, coadded image template generation, object association and classification, and alert streaming infrastructure. Contribute to the full development lifecycle, including algorithm and software design, code review, testing, and maintenance, following modern software engineering best practices such as version control, continuous integration, and peer review. Primary development will be in Python, with performance-critical components implemented in C++ or Rust. Data Analysis in Support of LSST Operations (25%): Evaluate the scientific data quality of LSST data products as processed by the developed pipelines, ensuring that outputs meet observatory requirements. Explore large-scale datasets to identify systematic issues, develop quantitative metrics to characterize pipeline performance, and diagnose the root causes of data quality problems. Propose and implement mitigations in collaboration with pipeline developers and members of the science community. Documentation and Reporting (15%): Communicate the results of algorithm development and data analysis activities through technical notes, peer-reviewed journal papers, and presentations. Report results to both internal project stakeholders and the broader astronomical community. Maintain clear and thorough documentation of software, methods, and findings. Participate in planning meetings to coordinate work activities and track progress. Personally-directed research (20%): Lead or collaborate on independent scientific research topics making use of Rubin Observatory data. Disseminate results through peer-reviewed publications and presentations at scientific conferences. Required Qualifications To be considered for this opportunity your application must demonstrate you meet both the minimum qualifications and additional qualifications listed below. Equivalent education and/or experience may substitute for minimum qualifications except when there are legal requirements, such as a license, certification, and/or registration. Minimum Qualifications Bachelor’s Degree, Astronomy, Physics, Computer Science, or related field Four years of experience developing Python and/or C++ algorithms and software in an astronomical context Applicants who do not meet these qualifications WILL NOT be forwarded to the Hiring Manager. Desired Qualifications Strong written and oral communication skills PhD in astronomy, physics, computer science, or a related field. Prior experience with large astronomical survey data and/or software. Experience with collaborative software development using Git and GitHub. Commitment to writing clear documentation and software tests; familiarity with continuous integration. Enthusiasm for contributing to science projects enabled by early LSST data in DiRAC research areas (https://dirac.astro.washington.edu/research/). Visa Sponsorship This recruitment is open to applicants who will require employer sponsorship for an H-1B or E-3 visa. About the Team The Rubin Observatory is an international collaboration with headquarters in Tucson, AZ. The Rubin Observatory Data Management team is composed of approximately 100 people, with 12 based at the University of Washington. The open-source codebase is available at https://github.com/lsst, and the developer guide is maintained at https://developer.lsst.io. The Institute for Data-intensive Research in Astrophysics and Cosmology (DiRAC; http://dirac.astro.washington.edu) is a center within the Astronomy Department at the University of Washington. Its mission is to build the world’s most advanced datasets, algorithms, and tools to explore and understand the universe. The Institute comprises six faculty and senior fellows and over 30 postdoctoral researchers, research scientists, software engineers, and graduate students. We strive to be an inclusive, welcoming, and collaborative community. We especially encourage individuals from underrepresented groups in STEM to apply. Prospective applicants are encouraged to learn more about DiRAC research areas at https://dirac.astro.washington.edu/research/. Compensation, Benefits and Position Details Pay Range Minimum: $80,244.00 annual Pay Range Maximum: $132,612.00 annual Other Compensation: - Benefits: For information about benefits for this position, visit https://www.washington.edu/jobs/benefits-for-uw-staff/ Shift: First Shift (United States of America) Temporary or Regular? This is a regular position FTE (Full-Time Equivalent): 100.00% Union/Bargaining Unit: UAW Research About the UW Working at the University of Washington provides a unique opportunity to change lives – on our campuses, in our state and around the world. UW employees bring their boundless energy, creative problem-solving skills and dedication to building stronger minds and a healthier world. In return, they enjoy outstanding benefits, opportunities for professional growth and the chance to work in an environment known for its diversity, intellectual excitement, artistic pursuits and natural beauty. Our Commitment The University of Washington is committed to fostering an inclusive, respectful and welcoming community for all. As an equal opportunity employer, the University considers applicants for employment without regard to race, color, creed, religion, national origin, citizenship, sex, pregnancy, age, marital status, sexual orientation, gender identity or expression, genetic information, disability, or veteran status consistent with UW Executive Order No. 81. To request disability accommodation in the application process, contact the Disability Services Office at 206-543-6450 or dso@uw.edu. Applicants considered for this position will be required to disclose if they are the subject of any substantiated findings or current investigations related to sexual misconduct at their current employment and past employment. Disclosure is required under Washington state law. Use the filters or enter keywords in the search box (such as “custodian,” “nursing” or “manager”) to explore available opportunities. To find temporary opportunities, enter “temporary” in the search box. If you are a current UW employee: You must log into Workday and apply internally through the UW Jobs Hub. Looking for faculty, librarian or academic staff positions? Please visit our Academic Jobs site. Looking for student employment? Learn more on our Student Employment site. There are many perks to working for the University of Washington. Learn more about the benefits that could be available to you as a UW employee. Sign up for Job Alerts to be notified about job opportunities at the UW that interest you; you’ll be one of the first to learn when openings become available. You will be asked to create an account if you do not already have one.

ls.st