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SpaceX successfully sent four space tourists on a three day joyride around the Earth inside its Crew Dragon spacecraft last week — and the mission has sent demand soaring, according to the company.

“The amount of people who are approaching us through our sales and marketing portals has actually increased significantly,” the company’s senior director of human spaceflight programs Benji Reed revealed during Saturday’s press conference, as quoted by Ars Technica. “There’s tons of interest rolling in now.”

Even more excitingly, Reed says that the company’s much, much bigger spacecraft Starship may also be destined to launch tourists, a massive upgrade that could allow significantly more passengers to embark on an extremely expensive trip to space.

What must the US do Eric Klien?


Read More: How China’s Digital Currency Could Challenge the Almighty Dollar

China has already largely moved away from coin and paper currency; Chinese consumers have racked up more than $41 trillion in mobile transactions, according to a recent research paper from the Brookings Institution, with the lion’s share (92%) going through digital payment processors WeChat Pay and Alipay.

“The reason you could say the U.S. is behind in the digital currency race is I don’t think the U.S. is aware there is a race,” Yaya Fanusie, an Adjunct Senior Fellow at the Center for a New American Security, and a former CIA analyst, tells TIME in an interview. “A lot of policymakers are looking at it and concerned…but even with that I just don’t think there’s this sense of urgency because the risk from China is not an immediate threat.”

Circa 2018 Imagine waste turned into gold.


No other life form on our planet has infiltrated every environment as successfully as the minuscule single cells of bacteria. Amongst their many roles in life on Earth, it turns out some of these microbes are also experts at purifying precious metals.

An international team of researchers has figured out how one metal-gobbling bacterium, Cupriavidus metallidurans, manages to ingest toxic metallic compounds and still thrive, producing tiny gold nuggets as a side-effect.

Just like many other elements, gold can move through what’s known as a biogeochemical cycle — being dissolved, shifted around, and eventually re-concentrated in Earth’s sediment.

A decent chunk of energy usage goes towards lighting, so scientists at MIT are developing a new kind of passive lighting – glow-in-the-dark plants. In the latest experiment, the team has made them glow much brighter than the first generation plants, without harming their health.

The emerging field of “plant nanobionics” involves embedding nanoparticles into plants to give them new abilities. Past work by the MIT team has created plants that can send electrical signals when they need water, spinach that could be used to detect explosives, and watercress that glows in the dark.

As interesting as that last one was, the glow wasn’t particularly bright – about on par with those plastic glowing stars many of us stuck to our ceilings as kids. That’s a cool novelty but not much help for the ultimate use case of passive lighting.

Researchers believe that mushy blobs on Uranus are hiding lots of gas.

More specifically, scientists have discovered that “mushballs,” large slushy hailstones made of ammonia and water, might be causing an odd atmospheric phenomenon on Uranus, according to a press release about the research. The mushballs, which are also present on Neptune, might be carrying ammonia into the two planets’ atmosphere and hiding the gas from detection.

The balls might actually be the secret behind why scientists can’t detect ammonia in the atmospheres of Uranus and Neptune — which is odd because it’s abundant with other gasses like methane.