Nuclear fusion power research passes milestone with ‘fusion ignition’

The west gate entrance to the US Department of Energy’s Lawrence Livermore National Laboratory in Livermore, California, US, on Monday, December 12th, 2022. | Photo by David Paul Morris / Bloomberg via Getty Images

For the first time, researchers have created a fusion reaction that resulted in a net energy gain. The results, from the Lawrence Livermore National Laboratory in California, mark a significant step on the very long road toward generating clean energy from nuclear fusion.

“Last week, lo and behold, indeed, they shot a bunch of lasers at a pellet of fuel and more energy was released from that fusion ignition than the energy of the lasers going in,” White House Office of Science and Technology Policy Director Arati Prabhakar said at a press conference announcing the achievement in Washington, DC, today. “I just think this is such a tremendous example of what perseverance really can achieve.”

“A tremendous example of what perseverance...

Continue reading…

More details : https://ift.tt/uaW2MxY

A ‘scientific breakthrough’ in nuclear fusion? How to watch the announcement tomorrow

The high-powered Nova Laser before it creates nuclear fusion inside its target chamber at the Lawrence Livermore National Laboratory in 1986. | Photo by Roger Ressmeyer/Corbis/VCG via Getty Images

A “scientific breakthrough” in the development of fusion energy is expected tomorrow from the Biden administration. For more than half a century, people have poured billions of dollars into nuclear fusion research, hoping to create a source of abundant, clean energy.

The rough idea is this: if we develop technology that can replicate the way the sun generates energy in a controlled way, we could power the world with energy that’s free of greenhouse gas emissions and long-lived radioactive waste. But scientists have been unable to trigger a fusion reaction that results in a net energy gain. Turns out, it takes a lot of heat energy to force atomic nuclei to “fuse” together.

People have poured billions of dollars into nuclear fusion...

Continue reading…

More details : https://ift.tt/l5JDUY6

NASA successfully completes its Artemis I mission

NASA’s Orion capsule splashed down into the Pacific Ocean at around 12:40PM ET. | Screenshot: Emma Roth / The Verge

NASA’s Orion spacecraft has returned to Earth. The uncrewed capsule safely splashed down into the Pacific Ocean off of Mexico’s Baja California around 12:40PM ET on Sunday, marking the end of the landmark Artemis I mission.

After a 1.4 million-mile journey through space, the capsule splashed down in an upright position without any major hiccups. It reached speeds of about 24,500mph as it returned to Earth, while its heat shield sustained scorching temperatures of around 5,000 degrees Fahrenheit.

As it reentered Earth’s atmosphere, the Orion capsule successfully performed a skip entry maneuver, in which Orion dipped into Earth’s upper atmosphere and lifted out before reentering again. The move is supposed to help the spacecraft land in...

Continue reading…

More details : https://ift.tt/Lo6BlKb

How to watch the end of NASA’s Artemis I mission

NASA’s SLS rocket sends the Orion Capsule on its way to the Moon on November 16th, 2022. The capsule is set to return to Earth on December 11th. | Photo by Joe Burbank / Orlando Sentinel / Tribune News Service via Getty Images

This weekend NASA’s Orion spacecraft will return to Earth, following its 25-day mission around the Moon. The uncrewed spacecraft is scheduled to splash down in the Pacific Ocean on Sunday, December 11th.

Since its launch on November 16th, Orion has traveled through Earth’s atmosphere and out into space, making a close flyby of the Moon and heading into a distant orbit, reaching a distance of over 43,000 miles from the Moon at its furthest point. Orion traveled around the Moon and made a second close flyby on the return journey and is now on its way back to Earth.

The biggest challenge that awaits the spacecraft now is safely entering the Earth’s atmosphere and landing in the ocean.

“At present, we are on track to have a fully successful...

Continue reading…

More details : https://ift.tt/1oiAq6p

Eight artists will journey around the Moon on a future SpaceX flight

Maezawa with the dearMoon crew and two alternates. | Image: Yusaku Maezawa

On Thursday, Japanese billionaire Yusaku Maezawa announced the selection of an eight-person crew who will join him on a SpaceX mission around the Moon. Maezawa’s dearMoon mission aims to be the first private mission around the Moon, carrying artists and creatives on a SpaceX Starship.

The crew consists of eight artists from a range of disciplines — it includes an EDM DJ, two photographers, a documentary filmmaker, and a YouTuber, along with other creative professionals.

“I hope each and every one will recognize the responsibility that comes with leaving the Earth, traveling to the moon and back,” Maezawa said in a video about the announcement, which is translated from Japanese. “They will gain a lot from this experience, and I hope they...

Continue reading…

More details : https://ift.tt/p6B1ySC

JetBlue no longer plans to offset emissions from domestic flights

A JetBlue plane takes off at San Francisco International Airport (SFO) in San Francisco, California, United States, on September 15th, 2022. | Photo by Tayfun Coskun / Anadolu Agency via Getty Images

JetBlue is giving up carbon offsets for its domestic flights, shifting its focus instead to sustainable aviation fuels. It’s a step that could help the airline actually reduce its emissions rather than relying primarily on controversial carbon offsets to counteract its fossil fuel use.

Back in 2020, JetBlue became the first US airline to voluntarily offset greenhouse gas emissions from all of its domestic flights. That effort ends in 2023, the company announced this week.

The airline now plans to effectively cut its per-seat emissions in half by 2035. For flights to take off without generating as much pollution, JetBlue says its planes will need to run on sustainable aviation fuels [SAF].

“JetBlue views SAF as the most promising avenue...

Continue reading…

More details : https://ift.tt/N1b3kS5

The hornet formerly known as ‘murder’ hasn’t been spotted in Washington state this year

Dead northern giant hornets, queens, lined up on top and smaller workers below — all samples brought in for research — are displayed with a field notebook on May 7th, 2020, in Blaine, Washington. | Photo by ELAINE THOMPSON/POOL/AFP via Getty Images

Good news! The invasive insect formerly known as the “murder hornet” might soon be under control in Washington state. After wrapping up its pest trapping season for 2022, the Washington State Department of Agriculture (WSDA) reported no sightings of the northern giant hornet.

“When it comes to the pests that we survey for, the best news is no news,” Sven Spichiger, WSDA managing entomologist, said in a press release yesterday.

It is still too early to declare complete victory over the hornet. It takes three years of no sightings for the pest to be considered “eradicated” under federal guidelines. But this is the first year without sightings since the first report of a northern giant hornet in Washington set off alarm bells in 2019.

“The...

Continue reading…

More details : https://ift.tt/xznBD7q

The $949 price for Dyson’s air-purifying headphones is more absurd than the device itself

The Dyson Zone will initially release in China in January 2023 before being made available for US preorders in March. | Image: Dyson

Dyson has released additional details for its Dyson Zone air-purifying headphones, the company’s first audio product we got to test earlier this year. On a new webpage dedicated to the unreleased headphones, Dyson has officially provided the full specifications, alongside a March release date for the US market and an eye-watering price of $949.

So, what are you getting for your money? The Dyson Zone supports Bluetooth 5.0 and features a 3.5mm audio jack and USB-C port for charging. Dyson claims the headphones can achieve up to 50 hours of battery life for audio-only operation, which is reduced to a maximum of four hours for combined air purification and audio. Dyson does not specify if these runtimes are with ANC enabled. The headphones...

Continue reading…

More details : https://ift.tt/NsfXUpx

Former Theranos executive Sunny Balwani is sentenced to almost 13 years in prison

Photo: Getty Images

Ramesh Balwani has been sentenced to 155 months, or just under 13 years, in prison, according to The New York Times. Like his former business partner, Theranos founder Elizabeth Holmes, he’s due another three years of supervised release after he gets out. Balwani will have to surrender to custody on March 15th.

In July, Balwani, also known as Sunny, was convicted on 10 counts of wire fraud and two counts of conspiracy to commit wire fraud for his actions while he was president and COO of Theranos. Unlike Holmes, who was found guilty of only defrauding investors, Balwani was found guilty of deceiving both investors and patients.

Part of Balwani’s role at Theranos was overseeing the labs at the blood testing company. Theranos once claimed...

Continue reading…

More details : https://www.theverge.com/2022/12/7/23499126/sunny-balwani-sentenced-13-years-prison

Stop burning trees for energy, scientists urge ahead of UN Biodiversity Conference

Little remains but stumps and puddles in what was once a bottomland hardwood forest on the banks of the Roanoke River in northeastern North Carolina. The trees were turned into wood pellets for burning in power plants in Europe. | Photo by Joby Warrick / The Washington Post via Getty Images

Forests are more valuable alive than dead, at least according to the more than 670 scientists who signed a letter urging world leaders to quit burning trees for energy. The plea comes as delegates gather for the United Nations Biodiversity Conference that begins today in Montreal.

The scientists want to stop to the industrial burning of wood for electricity and heat, referred to as forest bioenergy. The practice needs to be replaced by wind and solar energy, they write, to protect forests and creatures that make a home there.

“The goal to halt and reverse the global loss of nature could fail due to the growing pressure on forests from this industry,” the letter says. It’s addressed to the heads of government of China, the US, Canada,...

Continue reading…

More details : https://ift.tt/RJZfY8k

SpaceX launches new Starlink service aimed specifically at governments

SpaceX has quietly announced a new government-focused service on its website — Starshield — which it says offers a “secured satellite network for government entities.” The page, which appeared on the SpaceX website earlier this week, says that while its satellite internet service Starlink is aimed at end users and businesses, “Starshield is designed for government use.”

The announcement of Starshield follows work that SpaceX has already done with the US and other governments around the world. In August SpaceX signed a $2 million deal with the US Air Force to provide satellite internet access, and Starlink has also proved crucial to Ukrainian forces as they defend themselves against Russia’s invasion of the country (though the technology...

Continue reading…

More details : https://ift.tt/tDhZQ4w

The global energy crisis ‘turbocharged’ renewable energy growth

Recently installed solar panels at the Defence School of Transport on September 29th, 2021, in Leconfield, England.  | Photo by Christopher Furlong / Getty Images

Right now, there’s “unprecedented momentum behind renewables,” the International Energy Agency says. Renewable power growth has been “turbocharged” by countries scrambling to tackle a global energy crisis spurred on by war in Ukraine, according to new analysis from the agency. Over just the next five years, as much renewable power is expected to come online globally as was added over the past two decades.

Renewables will make up a whopping 90 percent of electricity capacity expansion in that five-year span, according to a new report by the International Energy Agency (IEA). By 2025, renewable energy is expected to topple coal to become the world’s biggest electricity source.

Solar and wind power make up the vast majority of that...

Continue reading…

More details : https://ift.tt/SFRewt6