Month: April 2023

Enlarge (credit: aquatarkus/Getty Images)

You know that you're supposed to wipe your smartphone or laptop before you resell it or give it to your cousin. After all, there's a lot of valuable personal data on there that should stay in your control. Businesses and other institutions need to take the same approach, deleting their information from PCs, servers, and network equipment so it doesn't fall into the wrong hands. At the RSA security conference in San Francisco next week, though, researchers from the security firm ESET will present findings showing that more than half of secondhand enterprise routers they bought for testing had been left completely intact by their previous owners. And the devices were brimming with network information, credentials, and confidential data about the institutions they had belonged to.

The researchers bought 18 used routers in different models made by three mainstream vendors: Cisco, Fortinet, and Juniper Networks. Of those, nine were just as their owners had left them and fully accessible, while only five had been properly wiped. Two were encrypted, one was dead, and one was a mirror copy of another device.

Enlarge (credit: John Timmer)

For many years, talking about fat-tire bikes meant you were referring to mountain bikes. But a more recent generation of bikes has dared to ask, "You call that fat?" These bikes, equipped with comically wide tires, promised to retain traction on just about any surface imaginable and to soften bumps without requiring a suspension.

Earlier this year, I had the chance to try out my first ultra-fat tire electric bike. Unfortunately, it was also my first mountain bike frame and the first folding frame I had tested. There were so many new things about the experience that it was tough to evaluate which aspects of the ride (good and bad) were due to the product and which were due to my unfamiliarity with the bike's features.

In an attempt to get a better perspective on things, I will be spending this spring riding a dedicated ultra-fat-tire e-bike, a dedicated folding e-bike, and a dedicated mountain e-bike. First up: the $1,500 Velotric Nomad 1, which falls in the ultra-fat tire category.

Enlarge / The far side of the Moon is an attractive place to carry out astronomy. (credit: Ernie Wright/NASA)

Lunar exploration is undergoing a renaissance. Dozens of missions, organized by multiple space agencies—and increasingly by commercial companies—are set to visit the Moon by the end of this decade. Most of these will involve small robotic spacecraft, but NASA’s ambitious Artemis program aims to return humans to the lunar surface by the middle of the decade.

There are various reasons for all this activity, including geopolitical posturing and the search for lunar resources, such as water-ice at the lunar poles, which can be extracted and turned into hydrogen and oxygen propellant for rockets. However, science is also sure to be a major beneficiary.

The Moon still has much to tell us about the origin and evolution of the solar system. It also has scientific value as a platform for observational astronomy.