1021
How much did the Apollo program cost?
The U.S spent $25.8 billion on Project Apollo ($309 billion when adjusted for inflation). This dataset provides annual expenditures and additional cost…
New
The latest blog posts to take off on Hacker News. 2,419 posts.
1022
Scientists Discover Ways of Making Old Blood New Again
University of Colorado School of Medicine researchers joined a study that restored the blood-making process in old mice, making their blood look new again.
1023
After millennia of expansion, the world has passed ‘peak agricultural land’
The world produces more food than ever, but the amount of land we use is now falling. This means we can feed more people while restoring wild habitat.
1024
1025
Qantas ferried an engine on the wing of a 747 (2016)
When Qantas 747 VH-OJU had engine trouble in Johannesburg, VH-OJS came to the rescue ferrying a spare Rolls Royce engine from Sydney to Johannesburg for the stricken plane. We wanted to find out more, so we talked with Qantas about how they go about carrying an extra engine across the ocean. After considering its…
1026
Earthworms after rain (2019)
What’s really happening when we see earthworms on a soggy sidewalk? It's probably not what you think.
1027
1028
Low-cost gel film can pluck drinking water from desert air
More than a third of the world’s population lives in drylands, areas that experience significant water shortages. Scientists and engineers at The
1029
Missing link between Alzheimer’s and vascular disease found?
A gene called FMNL2 may explain why people with hypertension, diabetes, heart disease, or obesity have a greater risk of developing Alzheimer's disease.
1030
1031
Plastic-eating enzyme could eliminate billions of tons of landfill waste
AUSTIN, Texas — An enzyme variant created by engineers and scientists at The University of Texas at Austin can break down environment-throttling plastics
1032
Solar-powered desalination device wins MIT $100K competition
The winner of the 2022 MIT $100K Entrepreneurship Competition was Nona Desalination, which is developing a low-cost, portable water desalination and purification device.
1033
Fasting boosts stem cells’ regenerative capacity (2018)
Age-related declines in stem cell function can be reversed by a 24-hour fast, according to a new study from MIT. Biologists found fasting dramatically improves stem cells’ ability to regenerate, in both aged and young mice.
1034
1035
1036
Sleep helps process emotions
Researchers at the Department of Neurology of the University of Bern and University Hospital Bern identified how the brain triages emotions during dream sleep to consolidate the storage of positive emotions while dampening the consolidation of negative ones. The work expands the importance of sleep in mental health…
1037
T cells block nerve cell regeneration with age, but can be reversed – mice study
New research in mice shows T cells prevent damaged nerve cells from regenerating due to a reversible, ageing-related mechanism.
1038
Astronomers reveal first image of the black hole at the heart of our galaxy
The first images of the supermassive black hole at the heart of Sgr A reveal that this black hole is very different from the one at the heart of M87.
1039
Oxygen Candles: Providing Emergency Air
Oxygen candles are used as a backup source of breathable air inside refuge chambers, making them ideal for emergency situations underground.
1040
Humanity’s broken risk perception is reversing global progress
Human activity and behaviour is contributing to an increasing number of disasters across the world, putting millions of lives and every social and economic gain in danger, warns a new UN report.
1041
1042
1043
A single memory is stored across many connected brain regions
The mammalian brain stores a single memory across a widely distributed, functionally connected complex spanning many brain regions, rather than in just one or even a few places.
1044
1045
From seawater to drinking water, with the push of a button
MIT researchers created a portable desalination unit that can remove particles and salts simultaneously to generate drinking water. The user-friendly unit, which weighs less than 10 kilograms and does not require filters, can be powered by a small, portable solar panel.
1046
MIT researchers develop a paper thin loudspeaker
MIT researchers created an ultrathin loudspeaker that can turn any rigid surface into a high-quality, active audio source. The fabrication process can enable the thin-film devices to be produced at scale.
1047
Got food cravings? What’s living in your gut may be responsible
A new Pitt study shows that the gut microbiome of mice influences their preferred diet. The results, researchers say, could apply to humans, too.
1048
The 'Batman Effect': How having an alter ego empowers you (2020)
Thinking of yourself as a separate entity can reduce anxiety, while also kicking up some major benefits for your confidence and determination.
1049
1050
A drug that cures alcoholism may be the next anti-anxiety medication
A new study found that disulfiram, a drug used to treat chronic alcoholism, can safely reduce anxiety levels in rodents ...