Fred Rasio @fredrasio.bsky.social · 28/10/2025aasnova.org/2025/10/28/n...aasnova.orgNot Their First Rodeo: Gravitational Wave Detectors Spot Merging Black Holes That Have Merged BeforeThe gravitational wave events GW241011 and GW241110 provide strong evidence for the growth of black holes through successive mergers. 030
Fred Rasio @fredrasio.bsky.social · 23/07/2025aasnova.orgBetelgeuse’s Companion Star May Have Been Seen at LastFinally found: using speckle imaging, researchers have spotted what is likely the predicted 1.6-solar-mass companion to the red supergiant Betelgeuse. 030
Reposted by Fred RasioAAS Nova @aasnova.org · 04/06/2025There’s more than one way to measure the age of a star in a cluster. But do different age-assigning methods agree? aasnova.org/2025/06/04/s... @ufresearch.bsky.social 🔭🧪aasnova.orgStar-Crossed Clusters: When Ages Are at OddsIf you measure the age of a star using two different methods, do those ages agree? New research shows where our age estimates might be mismatched and what this disagreement could mean. 0158
Fred Rasio @fredrasio.bsky.social · 28/05/2025ApJ Letters exoALMA Focus Issueaasnova.orgMonthly Roundup: A Deep View of Planet-Forming Disks with ALMAIntroducing exoALMA: a survey of 15 large, bright protoplanetary disks that has revealed gas structures that point to potential planet formation. 020
Fred Rasio @fredrasio.bsky.social · 04/04/2025aasnova.orgSpinning Up: Impacts of Stellar Collisions on Binary Black Hole MergersHow do interactions binary black holes experience in dense star clusters impact the gravitational waves we detect on Earth? Recent simulations show that stellar collisions leave imprints on the masses... 010
Reposted by Fred RasioAmerican Astronomical Society (AAS) @aas.org · 01/04/2025NASA has selected 24 new fellows for its prestigious NASA Hubble Fellowship Program. They will begin their programs in the fall at a US university or research center of their choosing. aas.org/posts/news/2... 0202
Reposted by Fred RasioThe New York Times @nytimes.com · 03/04/2025Several Republicans joined Senate Democrats to pass a measure seeking to block some of President Trump’s tariffs on Canada.nytimes.comSenate Votes to Rescind Some Trump Tariffs, With G.O.P. SupportA measure to cancel some Canadian tariffs is all but certain to stall in the House. But with a handful of Republicans in favor, the vote sent a signal of opposition to the levies. 481057146
Reposted by Fred RasioSera Markoff @profsera.bsky.social · 12/03/2025Thanks to @fredrasio.bsky.social, I was pleasantly surprised to learn that our first black hole image paper is in the top 5 most cited papers in the Astrophysical Journal Letters! I'm also sort of shocked that the top 5 cited papers are all about black holes or neutron stars, not exoplanets?! 🔭🧪 1244
Fred Rasio @fredrasio.bsky.social · 08/03/2025aas.orgAAS Alarmed by Rumored Deep Cuts to NASA and National Science Foundation | American Astronomical SocietyRecent reports have indicated that the White House may soon be proposing drastic cuts to future budgets for the National Science Foundation and the NASA Science Mission Directorate. 000
Reposted by Fred RasioNPR @npr.org · 02/03/2025Dr. Frances Collins is leaving the National Institutes of Health, where he served as director from 2009 to 2021. The agency is facing cutbacks and restrictions under the Trump administration.npr.orgLegendary former NIH director retires from embattled agencyDr. Francis Collins is leaving the National Institutes of Health, where he served as director from 2009 to 2021. The agency is facing cutbacks and restrictions under the Trump administration. 661029236
Reposted by Fred RasioSean Carroll @seanmcarroll.bsky.social · 07/02/2025The US government has been turned over to a group of extraordinarily ignorant people, and they are working to destroy science in this country. Cutting over half the NSF budget would save < 0.1% of the federal budget, but do incalculable harm. Simply heartbreaking. arstechnica.com/science/2025...arstechnica.comWhite House budget proposal could shatter the National Science Foundation“This kind of cut would kill American science and boost China.”… 31705219
Reposted by Fred RasioThe Borowitz Report @borowitzreport.bsky.social · 18/01/2025Bernie Blasts Trump For Moving Inauguration Inside: “Wear Some Fucking Mittens” 231069180
Fred Rasio @fredrasio.bsky.social · 14/01/2025www.nytimes.com/2025/01/11/s...nytimes.comJ. Fraser Stoddart, Who Developed Microscopic Machines, Dies at 82He grew up playing with model construction sets. As an adult, he tinkered with molecules instead, creating nanomachines and winning a Nobel Prize. 000
Fred Rasio @fredrasio.bsky.social · 09/01/2025ascl.net/wordpress/20...ascl.netSverre Aarseth, father of open source stellar dynamics software, has passed on to a higher orbit – ASCL.net 020
Reposted by Fred RasioTod Lauer @todlauer.bsky.social · 08/01/2025Unbelievable, but horrifically real 052
Fred Rasio @fredrasio.bsky.social · 25/12/2024cnn.comHistory-making probe attempts closest-ever approach to the sun | CNNOn Christmas Eve, the Parker Solar Probe was set to become the closest spacecraft to the sun, flying within a few million miles of the solar surface. 000
Fred Rasio @fredrasio.bsky.social · 27/09/2023From Discovery to the First Month of the Type II Supernova 2023ixf aasnova.org/2023/09/27/g... 020