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Science & Space

The most popular blog posts about science & space on Hacker News. 409 posts.

2021
243

RNA Memory Hypothesis

There’s an old theory that memory is actually encoded in part in RNA. The argument is pretty simple: there’s no obvious way for all that sensory data to be captured in synapses as long …

244

Prions

Editor’s Note 4/4/21: A few weeks after this article was published, a mysterious prion disease was identified in New Brunswick, Canada. I do not have to say that viruses have dominated every level of public conversation for the past year. Ancient and odd but relatively easy to talk about,

264

Tianwen-1 attitude in Mars orbit

It has been a while since the last time I wrote an update about Tianwen-1’s attitude . In that post I showed that Tianwen-1 had changed to a sun angle of 0 degrees with respect to the spacecraft’s X axis on 2020-10-22. Since then, nothing changed, even after the spacecraft arrived to Mars orbit on February 2021, so I…

266

Palm oil favors tumor expansion

Ninety per cent of cancer deaths are caused by metastasis, that is to say, the spread of the primary tumour to other organs. Scientists led by ICREA researcher Dr. Salvador Aznar-Benitah at IRB Barcelona have described the mechanism by which a diet rich in palmitic acid makes tumour cells more aggressive, conferring…

269

How to Start a Biotech Company on a Budget

Running a biotech company is capital intensive, and this can make it intimidating to get started. Founders sometimes face a chicken and egg problem: how do you make progress without millions of dollars in funding, and how do you raise millions of dollars in funding without having made progress? However, it is quite…