A Material Only Found in Meteorites Has Been Made on Earth

An alloy called tetrataenite—a combination of nickel and iron typically created by being cooled “over millions of years as meteoroids and asteroids tumbled through space”—has been produced on Earth for the first time. Two teams of scientists (at Boston’s Northeastern University and England’s University of Cambridge) made the compound, which is “ideal for use in the high-end permanent magnets that are an essential component of …

Link About It: This Week’s Picks

The search for extraterrestrial intelligence, a feminist bird-watching club, an inclusive surf school and more

Helsinki Plans to Use Seawater to Create Sustainable Heating Helsinki hopes to achieve carbon neutrality by 2030 and to do so the Finnish capital is planning on utilizing cold water from deep in the Baltic Sea to heat homes. Partnering with Spanish builder Acciona SA and infrastructure company YIT Oyj, the city’s power company Helen Oy will extract water from the seabed that remains at …

Two Astronomers Discuss Technosignatures in The Search for Extraterrestrial Intelligence

Macy Huston, a PhD candidate in astronomy and astrophysics at Penn State, and Jason Wright, a professor of astronomy and astrophysics at the university, have penned a thought-provoking essay on technosignatures—or the signs of alien technology that could lead to discovery. Both work on SETI, the search for extraterrestrial intelligence, and have addressed everything from radio waves to megastructures developed by advanced civilizations that harness …