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NASA chief says cost-plus contracts are a “plague” on the space agency

Enlarge / NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (NASA) Administrator Bill Nelson is seen in firing room four during the launch of a SpaceX Falcon 9 rocket carrying the company’s Crew Dragon spacecraft on the Crew-4 mission in April. (credit: Joel Kowsky/NASA via Getty Images) NASA Administrator Bill Nelson appeared before a US Senate Appropriations subcommittee […]

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Turning waste into gold drugs

Enlarge (credit: Krisana Antharith / EyeEm) Earth Day was April 22, and its usual message—take care of our planet—has been given added urgency by the challenges highlighted in the latest IPCC report. This year, Ars is taking a look at the technologies we normally cover, from cars to chipmaking, and finding out how we can […]

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Rocket Lab catches a 1-ton booster falling back from space

Enlarge / After being caught by a helicopter, and then dropped into the sea, an Electron booster is brought back to New Zealand by boat on Tuesday. (credit: Rocket Lab) On Monday evening Rocket Lab launched its 26th Electron mission, successfully deploying a record 34 small satellites into orbit. But attention for this mission was […]

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Ars Frontiers is next week—here’s what’s on tap at our first conference

Enlarge (credit: Aurich Lawson) As we noted a couple of weeks ago with our announcement post, we’re fast approaching the date for Ars Frontiers, our inaugural single-day conference. The event will be held next week, on May 12, in Washington, DC. We’re going to be exploring the interconnectedness of innovation—looking at how the things that […]

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Listen to the X-ray echoes of a black hole as it devours a companion star

The sound of a binary black hole’s echoes, courtesy of MIT’s Erin Kara and Kyle Keane. Animation computed by Michal Dovciak. Black holes feeding on companion stars can go through cycles where they emit high-energy outbursts. MIT astronomers are using X-ray echoes from those cycles to map out the environment around these exotic objects, similar […]

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SpaceX engineer says NASA should plan for Starship’s “significant” capability

Enlarge / In this illustration, SpaceX’s Starship vehicle is seen landing on the Moon. (credit: NASA) As part of its Artemis program to return humans to the Moon this decade, NASA has a minimum requirement that its “human landing system” must be able to deliver 865 kg to the lunar surface. This is based on […]

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Online retailers are offering rare, endangered bugs

When a rare species is a product. Alive or dead, rare or mundane, insects are weirdly easy to find for sale online. However, in some cases, the insects or spiders sold through the various e-commerce sites, both niche and large-scale, may be of dubious provenance. Some may be bred and reared in sustainable programs. Others […]

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The Western space community should put Dmitry Rogozin on “ignore”

Enlarge / Roscosmos Head Dmitry Rogozin is seen before Russia-China talks at the Moscow Kremlin. (credit: Mikhail Metzel/TASS via Getty Images) It happened again this weekend. Both Bloomberg and Axios reported that Russia is quitting the International Space Station due to sanctions imposed by the United States on Russia. Each of these stories garnered considerable […]

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“Elephant in the room”: Clean energy’s need for unsustainable minerals

Enlarge Earth Day was April 22, and its usual message—take care of our planet—has been given added urgency by the challenges highlighted in the latest IPCC report. This year, Ars is taking a look at the technologies we normally cover, from cars to chipmaking, and finding out how we can boost their sustainability and minimize […]

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Scientists blast out Earth’s location with the hope of reaching aliens

The Large Magellanic Cloud, the largest satellite galaxy of the Milky Way. Accurate estimates of the distance to this galaxy help calibrate measurements of the expansion rate of the Universe. (credit: Robert Gendler/Josch Hambsch) If a person is lost in the wilderness, they have two options. They can search for civilization, or they could make […]