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Branch Privilege Injection: Exploiting branch predictor race conditions

https://comsec.ethz.ch/research/microarch/branch-privilege-injection/
266•alberto-m•5h ago•93 comments

Starcloud

https://www.ycombinator.com/companies/starcloud
41•wiley1454•1h ago•54 comments

Show HN: Helixdb – Open-source vector-graph database for AI applications (Rust)

https://github.com/HelixDB/helix-db/
81•GeorgeCurtis•4h ago•39 comments

Failed Soviet Venus lander Kosmos 482 crashes to Earth after 53 years in orbit

https://www.space.com/space-exploration/launches-spacecraft/failed-soviet-venus-lander-kosmos-482-crashes-to-earth-after-53-years-in-orbit
61•taubek•3d ago•34 comments

Build Real-Time Knowledge Graph for Documents with LLM

https://cocoindex.io/blogs/knowledge-graph-for-docs/
26•badmonster•2h ago•3 comments

Multiple security issues in GNU Screen

https://www.openwall.com/lists/oss-security/2025/05/12/1
313•st_goliath•10h ago•182 comments

PDF to Text, a challenging problem

https://www.marginalia.nu/log/a_119_pdf/
189•ingve•6h ago•103 comments

It Awaits Your Experiments

https://www.rifters.com/crawl/?p=11511
101•pavel_lishin•6h ago•28 comments

Launch HN: Miyagi (YC W25) turns YouTube videos into online, interactive courses

137•bestwillcui•8h ago•79 comments

Google is building its own DeX: First look at Android's Desktop Mode

https://www.androidauthority.com/android-desktop-mode-leak-3550321/
124•logic_node•7h ago•130 comments

Ask HN: How are you acquiring your first hundred users?

424•amanchanda•13h ago•265 comments

OpenTelemetry protocol with Apache Arrow

https://opentelemetry.io/blog/2025/otel-arrow-phase-2/
35•tanelpoder•3h ago•11 comments

Garbage Collection of Object Storage at Scale

https://www.warpstream.com/blog/taking-out-the-trash-garbage-collection-of-object-storage-at-massive-scale
7•ko_pivot•3d ago•1 comments

Membrane: Media Framework for Elixir

https://membrane.stream/
92•lawik•3d ago•31 comments

Turritopsis dohrnii: Immortal jellyfish

https://www.nhm.ac.uk/discover/immortal-jellyfish-secret-to-cheating-death.html
18•vinnyglennon•4d ago•3 comments

I learned Snobol and then wrote a toy Forth

https://ratfactor.com/snobol/
110•ingve•2d ago•30 comments

Why are banks still getting authentication so wrong?

https://jamal.haba.sh/its-2025-why-are-banks-still-getting-authentication-so-wrong/
166•kamikazee•2h ago•211 comments

Don't unwrap options: There are better ways (2024)

https://corrode.dev/blog/rust-option-handling-best-practices/
71•mu0n•3h ago•43 comments

Insurers launch cover for losses caused by AI chatbot errors

https://www.ft.com/content/1d35759f-f2a9-46c4-904b-4a78ccc027df
89•jmacd•2d ago•34 comments

The Battle to Bottle Palm Wine (2021)

https://www.atlasobscura.com/articles/palm-wine-in-united-states
9•prmph•3d ago•9 comments

Mill as a direct style build tool

https://mill-build.org/blog/12-direct-style-build-tool.html
26•lihaoyi•3d ago•3 comments

In a high-stress work environment, prioritize relationships

https://wqtz.bearblog.dev/high-stress-job-relationships/
256•wqtz•8h ago•171 comments

PyPI Organizations (2023)

https://blog.pypi.org/posts/2023-04-23-introducing-pypi-organizations/
36•calpaterson•4h ago•12 comments

TheForger's Win32 API Tutorial

https://winprog.org/tutorial/
42•xeonmc•8h ago•3 comments

A Taxonomy of Bugs

https://ruby0x1.github.io/machinery_blog_archive/post/a-taxonomy-of-bugs/index.html
31•lissine•6h ago•11 comments

One hundred and one rules of effective living

https://mitchhorowitz.substack.com/p/101-rules-of-effective-living
72•mathgenius•10h ago•65 comments

Odin: A programming language made for me

https://zylinski.se/posts/a-programming-language-for-me/
158•gingerBill•13h ago•167 comments

The world could run on older hardware if software optimization was a priority

https://twitter.com/ID_AA_Carmack/status/1922100771392520710
511•turrini•11h ago•478 comments

Using Obscure Graph Theory to Solve Programming Languages Problems

https://reasonablypolymorphic.com/blog/solving-lcsa/
5•matt_d•1h ago•1 comments

The great displacement is already well underway?

https://shawnfromportland.substack.com/p/the-great-displacement-is-already
246•JSLegendDev•1d ago•199 comments
Open in hackernews

Satellite will have to be turned off when it floats over the US

https://www.thecooldown.com/green-tech/biomass-satellite-carbon-capture-forests/
19•howard941•1d ago

Comments

perihelions•1d ago
> "“The primary frequency allocation in P band is for huge SOTR [single-object-tracking radars] Americans use to detect incoming intercontinental ballistic missiles. That was, of course, a problem for us,” Scipal says. To get an exemption from the ban on space-based P-band radars, ESA had to agree to several limitations, the most painful of which was turning the Biomass radar off over North America and Europe to avoid interfering with SOTR coverage."

https://www.technologyreview.com/2025/04/18/1115388/esa-airb...

I guess that's referring to things such as these?

https://en.wikipedia.org/wiki/PAVE_PAWS ("...The radar operates in the UHF band between 420 - 450 MHz...")

echoangle•1d ago
Maybe my non-native English is showing but I’m having difficulty reading the article. First, it describes how the satellite can’t be used over the US and Europe and then says:

> Still, this isn't the worst setback. [… stuff how the satellite will be used over southern America …]

I was waiting for the description of an even worse setback, which makes the satellite even more limited, but it seems like „this isn’t the worst setback“ was supposed to mean „it’s not too bad, we can still do other useful stuff“. Was that understandable for native speakers?

imglorp•1d ago
Yes it's a little awkward. I think they mean South America is still ok -- so they can collect data there -- but not North America.
omneity•1d ago
It's not just you. It feels like there's a missing sentence or paragraph somewhere connecting the two. Maybe there's a compounding effect making the impact of turning the satellite off worse?
kd5bjo•1d ago
This is one of the annoying constructions in English that has two common meanings which are the opposite of each other. It can either be referring to the worst possible/conceivable setback (as here) or to the worst encountered setback-- you have to use other clues like overall tone and the surrounding context to figure out which was meant.
vntok•1d ago
Yeah, yeah.
treetalker•1d ago
You wrote:

> I was waiting …

I think your instinct and expectation were correct. The article reads:

> The info provided by Biomass will be a critical step forward.

I think it should read "The info provided by Biomass would be a critical step forward." ("Would" should be used because it's discussing a hypothetical situation contrary to fact — contrary to fact because the restrictions impede the collection of the desired data.)

My guess is that it's either sloppy editing or LLM-generated text.

casenmgreen•1d ago
It can be read in two ways.

The most natural way is as you have read it.

However, it is also valid in the sense of "this is a setback, but it's not all that bad". (You might write, "Still, this isn't the worst setback ever.")

You would need to read enough to realize by later lack of a description of the worst setback to realize the former, most natural way, is not in use.

secondcoming•1d ago
Interesting, I never noticed the ambiguity until you pointed it out.

It's like the awful phrase 'I could care less' I suppose.

jasonlfunk•1d ago
Why does the title only mention the US? It can’t do it over Europe either.
microsoftedging•1d ago
Ragebait. Initially I thought it was something Trump did that resulted in this, and I'd assume others may as well.
secondcoming•1d ago
It's embarrassing that a satellite designed by the ESA can't be used over Europe.

I've read other information about ICBM-detecting satellites being triggered by the sun glinting off lakes having the same signature as an ICBM launch.

Surely the orbit of this satellite will be well known and so false positives alarms can be ruled out?

I suppose it's possible that a bad actor could time a real ICBM launch to coincide with this satellite's orbit to defeat Early Warning Systems, but then again they could just launch submarine-based ICBMs from the southern equator.

Jtsummers•1d ago
> Surely the orbit of this satellite will be well known and so false positives alarms can be ruled out?

It's not the physical presence of the satellite over the US that messes up (or could) ICBM detection, it's the operation of the satellite's radar system. That's why they have to turn off the radar when it's over the US and Europe.

IAmBroom•1d ago
Exactly. It's like shining your headlights onto a bunch of people looking at the nighttime sky for constellations.
fred_is_fred•1d ago
A better title would be "Recon satellite jammer launched by ESA".