Enlarge / Zoom’s San Jose, Calif., headquarters looks like a lovely place to be socially distanced from. (credit: Smith Collection | Gado | Getty Images)

Zoom’s ease of use, feature base, and free service tier have made it a go-to resource not only for all those office meetings that used to happen in conference rooms but also for teachers, religious services, and even governments. The widespread use, in turn, is shining a bright spotlight on Zoom’s privacy and data-collection practices, which apparently leave much to be desired.

The challenge is particularly pronounced in the health care and education sectors: Zoom does offer specific enterprise-level packages—Zoom for Education and Zoom for Healthcare—that have compliance with privacy law (FERPA and HIPAA, respectively) baked in. Many users in those fields, however, may be on the free tier or using individual or other types of enterprise licenses that don’t take these particular needs into consideration.

Enlarge (credit: Aurich Lawson / Getty)

Back in the before times, when a larger percentage of the human race roamed the Earth, i.e., several weeks ago, Comcast customers had to deal with something called a “data cap.” Cable users who consumed more than a terabyte of Comcast-branded Internet data in a single month had to pay an extra $10 for each additional, precious block of 50GB, or $50 more each month for unlimited data. Now, with a pandemic sweeping the United States and more people spending each day at home than ever, consumer-broadband usage is way up. But instead of raking in as many overage fees as it can, Comcast decided to upgrade everyone to unlimited data for no extra charge, for two months beginning March 13—and its network has no problem handling it.

Comcast on Monday said it has measured a 32 percent increase in peak traffic since March 1 and an increase of 60 percent in some parts of the US. VoIP and video conferencing is up 212 percent, VPN traffic is up 40 percent, gaming downloads are up 50 percent, and streaming video is up 38 percent.

Comcast, the nation’s largest cable and home-Internet provider, described the pandemic’s impact as “an unprecedented shift in network usage” but not one that diminishes Comcast’s ability to provide sufficient Internet bandwidth. “It’s within the capability of our network; and we continue to deliver the speeds and support the capacity our customers need while they’re working, learning, and connecting from home,” Comcast said. The company continues to monitor network performance and “add capacity where it’s needed.”

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  An example of Dark Sky’s maps from the desktop Web version. [credit:
  Dark Sky
  ]

Popular weather app and data-collection service Dark Sky has been acquired by Apple for an undisclosed sum, a blog post from the Dark Sky team announced. The post claims that Dark Sky will now “reach far more people, with far more impact, than we ever could alone.”

The iOS app will not see any changes “at this time,” and it will continue to be listed on the App Store. Android and Wear OS are a different story, though. The Android app will no longer be available for download, and “service to existing users and subscribers will continue until July 1, 2020, at which point the app will be shut down.” Active subscribers will get a refund.

As for the website, which is also popular:

Enlarge / Future moon bases could be built with 3D printers that mix materials such as Moon regolith, water, and astronauts’ urine. (credit: ESA/Foster and Partners)

Early last year, NASA announced an ambitious plan to return American astronauts to the Moon and establish a permanent base there, with an eye toward eventually placing astronauts on Mars. The Artemis Moon Program has its share of critics, including many in the US House of Representatives, who appear to prefer a stronger focus on a crewed mission to Mars. As Ars’ Eric Berger reported last August, “NASA stands a very real risk of turning the Artemis Program into a repeat of the Apollo Program—a flags-and-footprints sprint back to the Moon with no follow-through in the form of a lunar base or a sustained presence in deep space.”

But if the Artemis Program’s ambitious objectives survive the appropriations process, materials science will be crucial to its success, particularly when it comes to the materials needed to construct a viable lunar base. Concrete, for instance, requires a substantial amount of added water in order to be usable in situ, and there is a pronounced short supply of water on the moon. In a new paper in the Journal of Cleaner Production, an international team of scientists suggests that astronauts setting up a base on the moon could use the urea in their urine as a plasticizer to create a concrete-like building material out of lunar soil.

There’s certainly a strong argument to be made for using existing materials on the Moon itself to construct a lunar base. NASA estimates that it costs around $10,000 to transport one pound of material into orbit, according to the authors. Past proposals have called for 3D printing with Sorel cement, which requires significant amounts of chemicals and water (consumables), and a rocklike material that would require both water and phosphoric acid as a liquid binder. (The latter might be better suited to constructing a base on Mars.)