Link About It: This Week’s Picks

Mapping the universe, making tiles from discarded eggshells, learning from squids and more

“DESI” Will Attempt to Create The Most Detailed 3D Map of the Universe As part of an ambitious new survey of the cosmos, the Dark Energy Spectroscopic Instrument (DESI) will analyze light collected by the ultra-powerful Mayall telescope at Kitt Peak National Observatory. “DESI will record not only a galaxy’s light but also its spectrum,” according to Smithsonian Magazine, “by measuring how much light a given …

“DESI” Will Attempt to Create The Most Detailed 3D Map of the Universe

As part of an ambitious new survey of the cosmos, the Dark Energy Spectroscopic Instrument (DESI) will analyze light collected by the ultra-powerful Mayall telescope at Kitt Peak National Observatory. “DESI will record not only a galaxy’s light but also its spectrum,” according to Smithsonian Magazine, “by measuring how much light a given object emits at particular wavelengths.” It intends to compile this information into the …

The Search for Extraterrestrial Megastructures

For the first time in their history, NASA recently began funding searches for artificial extraterrestrial megastructures. While the agency has looked for life in space for decades, it’s been via biosignatures rather than technosignatures; signs of biological processes rather than signs of technological activity, which indicate higher intelligence. As Mordechai Rorvig writes for VICE, the existing department SETI (Search for Extraterrestrial Intelligence, founded in 1984) …