science.nasa.gov
Curiosity Blog, Sols 4838-4844: Wrapping Up the Boxwork Terrainhttps://science.nasa.gov/blog/curiosity-blog-sols-4838-4844-wrapping-up-the-boxwork-terrain/Written by Deborah Padgett, MSL Operations Product Ground System Task Lead at NASA’s Jet Propulsion Laboratory Earth planning date: Friday, March 20, 2026 Curiosity has just concluded a very intense week of science observations and engineering activities, as it wraps up its monthslong investigation of the Martian boxwork terrain. Three days of planning this week […]Mar 26, 2026 3:26 PM
science.nasa.gov
NASA’s Hubble Detects First-Ever Spin Reversal of Tiny Comethttps://science.nasa.gov/missions/hubble/nasas-hubble-detects-first-ever-spin-reversal-of-tiny-comet/Astronomers using NASA’s Hubble Space Telescope have found evidence that the spinning of a small comet slowed and then reversed its direction of rotation, offering a dramatic example of how volatile activity can affect the spin and physical evolution of small bodies in the solar system. This is the first time researchers have observed evidence […]Mar 26, 2026 2:00 PM
bing.com
Walmart Has an ‘Excellent’ $500 Electric Scooter on Sale for 45% Offhttp://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a8a5a8150084d4aa3715b3c048d916a&url=https%3A%2F%2Fwww.autoblog.com%2Fdeals%2Fzdza-electric-scooter-walmart-flash-sale&c=6586396519164454310&mkt=en-usView post: Walmart Shoppers Say These DeWalt 20V Max Batteries 'Last All Day Long' — And They're 55% Off The Zdza 750W Electric Scooter is on sale for $275 at Walmart. That’s 45% off its normal $500 ...Mar 26, 2026 12:14 PM
veil.simoneamico.com
Show HN: Veil – Dark mode PDFs without destroying images, runs in the browserhttps://veil.simoneamico.com/Hi HN! here's a tool I just deployed that renders PDFs in dark mode without destroying the images. Internal and external links stay intact, and I decided to implement export since I'm not a fan of platform lock-in: you can view your dark PDF in your preferred reader, on any device. It's a side project born from a personal need first and foremost. When I was reading in the factory the books that eventually helped me get out of it, I had the problem that many study materials and books contained images and charts that forced me, with the dark readers available at the time, to always keep the original file in multitasking since the images became, to put it mildly, strange. I hope it can help some of you who have this same need. I think it could be very useful for researchers, but only future adoption will tell.With that premise, I'd like to share the choices that made all of this possible. To do so, I'll walk through the three layers that veil creates from the original PDF:- Layer 1: CSS fMar 26, 2026 11:47 AM
news.ycombinator.com
XReplicator – eBPF-based server backups that track only changed disk sectorshttps://news.ycombinator.com/item?id=47527328I've been in cloud/platform engineering for a decade. One thing that always frustrated me: every backup tool either relies on fragile kernel modules for change block tracking, or does full-disk scans even when 1% of data changed. So we built XReplicator. It uses eBPF tracepoints to track dirty sectors at the block device layer — no kernel modules, no hypervisor APIs, no cloud-specific hooks. The agent runs inside the VM and works on any platform. Kernel devs called me mad for using eBPF for disk data replication. But the numbers speak for themselves:Full backup: ~17 minutes Incremental after 1.4% change: ~2 minutes Incremental after 0.4% change: ~56 seconds 71x less data scanned vs full backup 65–72% storage savings (LZ4 + block-level dedup)No kernel module compilation per kernel version, no reboots, sandboxed execution via the eBPF verifier. Restore at file, partition, or full disk level from any point in the chain. Honest caveat: the eBPF path only works on Linux kernel 5.10+. For leMar 26, 2026 6:46 AM
news.ycombinator.com
Ask HN: Has Claude Code quality level degraded lately?https://news.ycombinator.com/item?id=47526097Last week or so, I have been noticing Claude Code has been significantly challenged in keeping its stuff together. On a Max plan, using Opus 4.6 with thinking in Chat window (I use code as well, but this is just an example), asked it to create a web page that spits out a few different layouts/designs and its a single page web page, asked it to add ai to generate new designs.It kept messing up aspect ratio, and forgets to add the AI feature, I know what you are thinking, may be the prompts are off... but its like 'oh I forgot to add the AI feature, let me add it' and then no 'AI Feature' in its output.Driving me nuts, figured I would ask here to see if its just me or more people are seeing noticeable degradation of their experience recently...Mar 26, 2026 2:44 AM
science.nasa.gov
Artemis Moon Tree Dedicated in Honor of Mary W. Jacksonhttps://science.nasa.gov/learning-resources/science-activation/artemis-moon-tree-dedicated-in-honor-of-mary-w-jackson/On March 18, 2026, students, staff, and members of NASA’s Langley Research Center gathered at Mary W. Jackson Elementary School in Hampton to celebrate the dedication of a remarkable addition to the campus – an Artemis Moon Tree. Although formally dedicated on this day, the loblolly pine had already taken root months earlier, having been […]Mar 25, 2026 9:19 PM
science.nasa.gov
NASA Awards Astrophysics Postdoctoral Fellowships for 2026https://science.nasa.gov/missions/hubble/nasa-awards-astrophysics-postdoctoral-fellowships-for-2026/The highly competitive NASA Hubble Fellowship Program (NHFP) recently named 24 new fellows to its 2026 class. The NHFP enables outstanding postdoctoral scientists to pursue independent research in any area of NASA Astrophysics, using theory, observations, simulations, experimentation, or instrument development. Over 650 applicants vied for the 2026 fellowships, representing an oversubscription rate of 27 […]Mar 25, 2026 4:00 PM
nasa.gov
NASA-ISRO Satellite Captures Pacific Northwest Through Cloudshttps://www.nasa.gov/missions/nisar/nasa-isro-satellite-captures-pacific-northwest-through-clouds/Seattle and Portland, Oregon, are among the cloudiest cities in the United States. But that infamous cloud cover is no match for the U.S.-Indian Earth satellite NISAR (NASA-ISRO Synthetic Aperture Radar), which is designed to peer straight through clouds. Doing so allows scientists to study the Pacific Northwest’s natural landmarks and bustling port cities like […]Mar 25, 2026 3:51 PM
bing.com
TOBA To Host Thoroughbred Breeding Clinic May 29-30http://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a89616213384305815cf64e4c27dc5b&url=https%3A%2F%2Fsports.yahoo.com%2Farticles%2Ftoba-hose-thoroughbred-breeding-clinic-205021178.html&c=15001605249073074322&mkt=en-usThe Thoroughbred Owners and Breeders Association (TOBA) announced Gude Affair, owned and ridden by Allison Smith, as the recipient of the 2025 Rood & Riddle Sport Horse of the Year Award. The award ...Mar 25, 2026 1:50 PM
bing.com
Associate Degrees In Graphic Design: Everything You Need To Knowhttp://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a89e539edab45db864e43e9b7cfd61d&url=https%3A%2F%2Fwww.forbes.com%2Fadvisor%2Feducation%2Fbusiness-and-marketing%2Fgraphic-design-associates-degree%2F&c=15877682532823057007&mkt=en-usLiz Simmons is an education staff writer at Forbes Advisor. She has written about higher education and career development for various online publications since 2016. She earned a master’s degree in ...Mar 25, 2026 3:25 AM
apps.apple.com
Show HN: Visualizing Apple Health workout data (stats, trends, insights)https://apps.apple.com/us/app/streakout-workout-stats/id6758457318I've just launched this little iOS app as an alternative to Apple Fitness, which is cluttered and chaotic when it comes to visualizing basic workout stats and metrics.The idea is to focus on a clean, minimalistic design and only show high-level metrics that are actually useful, e.g. how often did I work out this week/month/year, cardio vs strength vs mobility, surf session count in February, etc.It's free and offline. Also, no signup, no ads, no data sharing, no social feeds, and no notifications.Just open it and get a quick glance at the state of your workout game within 2s.It's built in native Swift with liquid glass.Feedback is quite good so far, but it seems hard to get initial traction in the App Store, especially with all the AI slob these days. Would deeply appreciate some early downloads and honest reviews.Mar 24, 2026 3:56 PM
spacenews.com
From missions to systems: The architecture enabling a sustained lunar economyhttps://spacenews.com/from-missions-to-systems-the-architecture-enabling-a-sustained-lunar-economy/The conversation around humanity’s return to the moon is often viewed through launches, landers and national programs. But, industry leaders say that framework is becoming outdated. Instead, they point to […] The post From missions to systems: The architecture enabling a sustained lunar economy appeared first on SpaceNews.Mar 24, 2026 2:16 PM
nasa.gov
NASA Unveils Initiatives to Achieve America’s National Space Policyhttps://www.nasa.gov/news-release/nasa-unveils-initiatives-to-achieve-americas-national-space-policy/As part of its “Ignition” event on Tuesday, NASA announced a series of transformative agencywide initiatives designed to achieve President Donald J. Trump’s National Space Policy and advance American leadership in space. These actions reflect the urgency of the moment, but also the tremendous opportunity ahead for world-changing science and discovery. “NASA is committed to […]Mar 24, 2026 1:01 PM
spacenews.com
Fusion engine for missile warning lacks a government datasethttps://spacenews.com/fusion-engine-for-missile-warning-lacks-a-government-dataset/WASHINGTON – National missile warning and tracking could be improved if all government agencies shared the raw data they gather. “There are agencies that have sensors that can provide data that would be very supplemental to the missile-defense mission, but they designed it for a completely different purpose,” Devin Elder, Northrop Grumman Strategic Space Systems […] The post Fusion engine for missile warning lacks a government dataset appeared first on SpaceNews.Mar 24, 2026 10:30 AM
europeanspaceflight.com
US-Based Katalyst Selects Ariane 6 to Launch Satellite Servicing Spacecrafthttps://europeanspaceflight.com/us-based-katalyst-selects-ariane-6-to-launch-satellite-servicing-spacecraft/Arizona-headquartered space operations company Katalyst Space Technologies has signed a contract with Arianespace to launch its NEXUS-1 satellite servicing spacecraft aboard an Ariane 6 in 2027. The NEXUS-1 spacecraft is designed to operate in geostationary orbit (GEO), docking with satellites to perform a range of in-orbit servicing duties, including installing new hardware, repositioning satellites, and […] The post US-Based Katalyst Selects Ariane 6 to Launch Satellite Servicing Spacecraft appeared first on European Spaceflight.Mar 24, 2026 7:05 AM
spacenews.com
Parsons unveils new satellite antenna aimed at military markethttps://spacenews.com/parsons-unveils-new-satellite-antenna-aimed-at-military-market/Hybrid antenna developed by Parsons and Raven Defense combines a six-meter parabolic dish with an electronically steered phased-array feed The post Parsons unveils new satellite antenna aimed at military market appeared first on SpaceNews.Mar 23, 2026 7:00 PM
github.com
Show HN: Minimalist library to generate SVG views of scientific datahttps://github.com/alefore/mini_svg/Just wanted to share with HN a simple/minimal open source Python library that generates SVG files visualizing two dimensional data and distributions, in case others find it useful or interesting.I wrote it as a fun project, mostly because I found that the standard libraries in Python generated unnecessarily large SVG files. One nice property is that I can configure the visuals through CSS, which allows me to support dark/light mode browser settings. The graphs are specified as JSON files (the repository includes a few examples).It supports scatterplots, line plots, histograms, and box plots, and I collected examples here: https://github.com/alefore/mini_svg/blob/main/examples/READM...I did this mostly for the graphs in an article in my blog (https://alejo.ch/3jj).Would love to hear opinions. :-)Mar 23, 2026 5:54 PM
nasa.gov
NASA’s Hubble, Webb Telescopes Survey Pinwheel Galaxyhttps://www.nasa.gov/image-article/nasas-hubble-webb-telescopes-survey-pinwheel-galaxy/This March 16, 2026, image from NASA’s Hubble Space Telescope and the James Webb Space Telescope takes a closer look at the core of Messier 101, also known as the Pinwheel Galaxy. At 25 million light-years away, M101 is one of the closest “face-on” spiral galaxies to us. With that in mind, Hubble’s ultraviolet, visible, […]Mar 23, 2026 4:32 PM
esa.int
Tracking Arctic freshwater flow from spacehttps://www.esa.int/Applications/Observing_the_Earth/FutureEO/Tracking_Arctic_freshwater_flow_from_spaceArctic rivers and runoff from the land pour vast volumes of freshwater into the Arctic Ocean, influencing seawater salinity, sea-ice formation and ocean circulation, thereby playing an important role in regulating Earth’s heat balance.Mar 23, 2026 1:28 PM
