Archive for the ‘space travel’ category: Page 11

Feb 28, 2023

Largest Structures in the Universe Contain Magnetic Fields That Shed Light on Cosmic Web Formation

Posted by in categories: particle physics, space travel

Magnetic fields abound in the universe. Despite the fact that the Universe is electrically neutral, atoms may be ionized into positively and negatively charged nuclei and electrons.

According to Science Alert, magnetic fields are created when charges are accelerated. Collisions between and inside interstellar plasma are one of the most prevalent sources of large-scale magnetic fields. This is one of the primary generators of magnetic fields at the cosmic scale.

Feb 28, 2023

These New Technologies Could Make Interstellar Travel Real

Posted by in category: space travel

Long considered science fiction, leaving the solar system and speeding amid the stars may soon be within reach.

Feb 28, 2023

Elon Musk says remaining Twitter employees will receive “very significant” stock awards on March 24th

Posted by in categories: Elon Musk, finance, space travel

“This past week, we completed a difficult organizational overhaul focused on improving future execution, using as much feedback as we could gather from the entire company,” Musk wrote. “Those who remain are highly regarded by those around them.”

The short memo, titled “Performance Awards,” is Musk’s first communication to Twitter employees since he laid off hundreds more of them, including several senior loyalists and nearly all of the product team without warning over the weekend. (Platformer’s Zoë Schiffer first tweeted about the memo.)

After several rounds of cuts and demanding that employees be “extremely hardcore,” Musk hasn’t yet shared details about how he will make up for the stock awards that went away when he took Twitter private. In previous internal comments, he has alluded to the system he set up at SpaceX to let employees regularly sell the company’s stock to interested investors. Given Twitter’s distressed financial situation relative to SpaceX, it’s unclear what the appetite for its stock will be in the short term.

Feb 27, 2023

Dark Dweller

Posted by in category: space travel

By Gareth Worthington is a slim book that crams in lots of classic science fiction ideas. Singularities, first contact, and sentient spacecraft to name but three. Of my recent SF reads, Dark Dweller reminds me both of James Smythe and Gareth Powell

What is Dark Dweller?

The novel opens in a future dystopia. In order to run on clean energy, Earth requires Helium. This is acquired, at no small risk, from Jupiter. The companies that run the operations are fabulously wealthy; the people that do the harvesting, not so much. The 12-year journey to and from Jupiter is hard going. You’re in suspended animation for much of it, but that gap messes up your life. But hey, it’s a job.

Feb 26, 2023

Nuclear Propulsion — How close are we to the Expanse?

Posted by in categories: chemistry, space travel

The future of space travel with my new YouTube video on nuclear propulsion! Learn how this technology can improve the propellant efficiency of chemical rockets, making it a viable option for crewed missions to Mars, and perhaps get us to the stars.

Plus, compare nuclear propulsion to conventional chemical rockets such as the Saturn V and to the Epstein Drive from the Expanse.

Continue reading “Nuclear Propulsion — How close are we to the Expanse?” »

Feb 26, 2023

‘We are ready’: SpaceX’s Crew-6 astronaut mission launch for NASA on track

Posted by in category: space travel

NASA Commercial Crew/Twitter.

This is according to a NASA, and SpaceX prelaunch teleconference held late on Saturday.

Feb 25, 2023

Elon Musk’s Big Boy Rocket, the Most Powerful Ever Built, Is Nearly Ready to Fly

Posted by in categories: Elon Musk, space travel

Now, SpaceX just needs the green light.

Feb 24, 2023

New discovery sheds light on very early supermassive black holes

Posted by in categories: cosmology, space travel

Astronomers from the University of Texas and the University of Arizona have discovered a rapidly growing black hole in one of the most extreme galaxies known in the very early universe. The discovery of the galaxy and the black hole at its center provides new clues on the formation of the very first supermassive black holes. The new work is published in Monthly Notices of the Royal Astronomical Society.

Using observations taken with the Atacama Large Millimeter Array (ALMA), a radio observatory sited in Chile, the team have determined that the galaxy, named COS-87259, containing this new is very extreme, forming stars at a rate 1,000 times that of our own Milky Way and containing over a billion worth of . The galaxy shines bright from both this intense burst of star formation and the growing supermassive black hole at its center.

The black hole is considered to be a new type of primordial black hole—one heavily enshrouded by cosmic “dust,” causing nearly all of its light to be emitted in the mid-infrared range of the electromagnetic spectrum. The researchers have also found that this growing supermassive black hole (frequently referred to as an ) is generating a strong jet of material moving at near light speed through the host galaxy.

Feb 24, 2023

Journey to Alpha Centauri

Posted by in category: space travel

To get started planning a career that works on one of the world’s most pressing problems, sign up now at
Alpha Centauri may be the closest star system to us, but reaching it will be the voyage of a lifetime.

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Feb 23, 2023

Anti-dust tech paves way for self-cleaning surfaces

Posted by in categories: solar power, space travel, sustainability

Dust is a common fact of life, and it’s more than just a daily nuisance—it can get into machinery and equipment, causing loss of efficiency or breakdowns.

Researchers at The University of Texas at Austin partnered with North Carolina-based company Smart Material Solutions Inc. to develop a new method to keep dust from sticking to surfaces. The result is the ability to make many types of materials dust resistant, from spacecraft to solar panels to household windows.

The research is published in ACS Applied Materials & Interfaces.

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