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Science & Space

The most popular blog posts about science & space on Hacker News. 323 posts.

2019
125

Hubble takes gigantic image of the Triangulum Galaxy

The NASA/ESA Hubble Space Telescope has captured the most detailed image yet of a close neighbour of the Milky Way — the Triangulum Galaxy, a spiral galaxy located at a distance of only three million light-years. This panoramic survey of the third-largest galaxy in our Local Group of galaxies provides a mesmerising…

126

Gut microbes eat medication

The first time Vayu Maini Rekdal manipulated microbes, he made a decent sourdough bread. At the time, young Maini Rekdal, and most people who head to the kitchen to whip up a salad dressing, pop popcorn, ferment vegetables, or caramelize onions, did not consider the crucial chemical reactions behind these concoctions.

129

ET Don't Phone Home

I recently became aware of this article where a Google exec says - he’s serious - that ‘Nest owners should probably warn their guests that their conversations are being recorded’. That’s assuming the owners themselves are even aware of what these devices are doing, and the likely truth is that they do not. Like needy…

134

Atlas observes light scattering off light

Figure 1: ATLAS event display showing the energy deposits of two photons in the electromagnetic calorimeter (green) on opposite sides and no other activity in the detector, which is the clean signature of light-by-light scattering. The Feynman diagram of this process is shown in the lower right corner. (Image: ATLAS…

135

Biology Is Eating the World

We are at the beginning of a new era, where biology has shifted from an empirical science to an engineering discipline. After a millennia of using man-made approaches for controlling or manipulating biology, we have finally begun using nature’s own machinery—through biological engineering—to design, scale, and…

146

Misunderstanding Dunning-Kruger

There is, apparently, an increase recently in interest in the Dunning-Kruger effect. The Washington Post writes about this recently, making the obvious political observation (having to do with the current occupant of the White House). It's great that there is public interest in an important psychological phenomenon…