Month: April 2024

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Eclipse chasers take three different routes to totality

Diamond-ring effect before total solar eclipse
A diamond-ring effect is visible just before the beginning of a total solar eclipse, as seen from Arkansas. (GeekWire Photo / Kevin Lisota)

NASHVILLE, Ind. — There’s nothing like a total solar eclipse to remind you of the unstoppability of nature — and the tenuousness of technology.

Not that we need much of a reminder: The challenges of climate change, ranging from floods to wildfires, and the problems caused by the coronavirus pandemic amply show the limits of humanity’s control over nature.

But chasing totality is a more benign example showing just how hard it is to predict which paths Mother Nature will take, and how technology may or may not catch up.

It was tricky to pinpoint the best place to see today’s total eclipse, because totality was visible only along a narrow track stretching from Mexico to Newfoundland, for no more than four and a half minutes over any location. If clouds roll in at 3:04 p.m., and totality begins at 3:05, there’s nothing OpenAI or SpaceX can do about it.

Based on historical precedent, a stretch of Texas around Austin was supposed to have the best chance of clear skies. Here in Nashville, a well-known tourist destination south of Indianapolis, the cloud-cover predictions varied from totally sunny to as much as 60% clouded over. Meanwhile, some air travelers hoped to catch sight of the blacked-out sun as they flew above the clouds. How did it all turn out? Check out three tales from GeekWire’s eclipse team.

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GeekWire

Your (nearly) last-minute guide to the solar eclipse

Seattle eclipse-watchers wearing protective glasses in 2017
Eclipse watchers at Kerry Park in Seattle’s Queen Anne neighborhood in 2017. (GeekWire File Photo / Kurt Schlosser)

It’s prime time for eclipse-chasers: A total solar eclipse will trace a line from coast to coast on Monday, and the anticipation is at its peak. So are the travel costs.

Hard-core eclipse fans made their travel arrangements long ago. That was also the case back in 2017, when a similar all-American solar eclipse turned central Oregon into one of the nation’s hottest hotspots (made even hotter by that summer’s wildfires). Witnessing a total solar eclipse in person is something everyone ought to do at least once in their life, and if you want to get in on the experience this time around, it’s still possible.

I should know: That’s exactly what I’m doing.

Check out the viewing guide on GeekWire
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GeekWire

Black flier gets a second chance to make space history

Ed Dwight as Air Force test pilot
Air Force Capt. Ed Dwight missed out on space in the 1960s. (Courtesy of Ed Dwight via National Geographic)

If the fates decided differently, Air Force test pilot Ed Dwight could have become NASA’s first Black astronaut in the 1960s — but he lost out, amid racial controversy. Now he’s in line to travel to the final frontier with Jeff Bezos’ Blue Origin space venture.

Blue Origin listed the 90-year-old Dwight among six people who’ll be on its New Shepard suborbital rocket ship when it resumes crewed flights, on a date yet to be announced. Crewed flights were suspended after an uncrewed research mission went awry in 2022, but a repeat of that uncrewed mission went off without a hitch last December.

Dwight, who became a sculptor after resigning from the Air Force as a captain in 1966, will have his flight sponsored by Space for Humanity and by the Jaison and Jamie Robinson Foundation, which was created by the founders of Seattle-based Dream Variation Ventures.

Dwight’s life story is featured in a National Geographic documentary titled “The Space Race.” In 1961, he was chosen to enter an Air Force flight training program that was regarded as a pathway to NASA’s astronaut corps, and went on to win an Air Force recommendation to join NASA. But Dwight was passed over — and he later said that racism was to blame.

“My hope was just getting into space in any kind of way,” Dwight said in the documentary, “but they were not going to let that happen.”

It would be another two decades before Guion Bluford Jr. became the first Black American in space in 1983.

This isn’t the first time Blue Origin has put a would-be pioneer astronaut on its crew list. The quartet for the company’s first crewed flight in 2021 included Wally Funk, a member of the “Mercury 13” group of women fliers who missed out on joining NASA’s early astronaut corps.

Dwight could be in line to attain a different kind of distinction in space history: As of now, the oldest person to reach space, albeit on a suborbital trip, is William Shatner, the star of the first set of “Star Trek” TV shows and movies. His age was 90 years and 205 days at the time of his flight in October 2021. Dwight is currently 90 years and 208 days old. He could thus wrest away Shatner’s space title. (Blue Origin said “the flight date will be announced soon.”)

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Universe Today

NASA picks three teams to work on lunar terrain vehicle

NASA illustration showing Lunar Terrain Vehicle on moon's surface
An artist's conception shows NASA's generic concept for the Lunar Terrain Vehicle. (NASA Illustration)

Some of the biggest names in aerospace — and the automotive industry — will play roles in putting NASA astronauts in the driver’s seat for roving around on the moon.

The space agency today selected three teams to develop the capabilities for a lunar terrain vehicle, or LTV, which astronauts could use during Artemis missions to the moon starting with Artemis 5. That mission is currently scheduled for 2029, three years after the projected date for Artemis’ first crewed lunar landing.

The teams’ leading companies may not yet be household names outside the space community: Intuitive Machines, Lunar Outpost and Venturi Astrolab. But each of those ventures has more established companies as their teammates.

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GeekWire

How to turn down the noise in quantum computing

Quantum researchers in lab
Scientists make adjustments to a beam-line array used to deliver laser pulses in quantum computers. (Quantinuum Photo)

Microsoft and Quantinuum say they’ve demonstrated a quantum computing system that can reduce the error rate for data processing by a factor of 800.

“Today signifies a major achievement for the entire quantum ecosystem,” Jason Zander, Microsoft’s executive vice president for strategic missions and technologies, said in a blog posting about the achievement.

Quantum computing could solve certain types of problems — ranging from data encryption and system optimization to the development of new synthetic materials — on a time scale that would be unachievable using classical computers. “Scaled quantum computers would offer the ability to simulate the interactions of molecules and atoms at the quantum level beyond the reach of classical computers, unlocking solutions that can be a catalyst for positive change in our world,” Zander said.

The secret to success lies in quantum bits, or qubits, that can represent multiple values until the results of a computation are read out. Qubits typically make use of exotic materials, such as superconducting circuits, diamonds with defects or laser-cooled ions.

One big challenge is that qubits tend to be “noisy” — that is susceptible to perturbations that introduce errors. For years, researchers have been hunting for ways to maintain the fidelity of qubits and correct any errors that arise. Such strategies typically involve linking up multiple physical qubits to represent a single “logical qubit.”

Just a couple of years ago, Microsoft researchers were saying that a quantum computer would need at least a million physical qubits in order to demonstrate an advantage over classical computers. But that’s because it was thought that thousands of physical qubits would be required to produce a single logical qubit. If fewer physical qubits are required for error correction, that would make it easier to build useful quantum computers.

The newly reported demonstration addresses that challenge: Microsoft and Quantinuum said they created four highly reliable logical qubits from just 30 physical qubits. “With this system, we ran more than 14,000 individual experiments without an error,” Zander said.

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GeekWire

Radian Aerospace updates design for orbital space plane

Illustration: Radian One space plane in orbit
An artist's conception shows the Radian One space plane in orbit. (Radian Aerospace Illustration)

A Seattle-area startup called Radian Aerospace is fine-tuning the design of its orbital space plane, with an eye toward building a subscale prototype as early as this year.

The company is also in the midst of a fresh round of fundraising, following up on $27.5 million in investment that was announced in 2022, according to Livingston Holder, Radian’s co-founder and chief technology officer. “That round will be larger,” Holder told me.

Over the past two years, Radian has made progress on an ambitious plan to create a reusable winged space plane that would be launched toward low Earth orbit by a rocket-propelled sled and its own rocket engines. The single-stage-to-orbit concept, or SSTO, has been called a “holy grail” for cheap access to space.

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