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Archive for the ‘space travel’ category: Page 161

Feb 25, 2022

Scientists create laser system that could get to Mars in just 45 days

Posted by in category: space travel

Engineers from McGill University, in Montreal, Canada, say they have developed a ‘laser-thermal propulsion’ system, where lasers are used to heat hydrogen fuel.

It is directed-energy propulsion, using large lasers fired from Earth to deliver power to photovoltaic arrays on a spacecraft, that generate electricity, and in turn thrust.

The spacecraft accelerates very quickly while near Earth, then races towards Mars over the next month, releasing the main vehicle to land on the Red Planet and returning the rest of the vehicle to Earth to be recycled for the next launch.

Feb 23, 2022

Inside life in Elon Musk’s Mars colony — with vegan diets and ‘terraforming’

Posted by in categories: Elon Musk, engineering, environmental, space travel

Billionaire Elon Musk has long been vocal about his ambitions for colonizing Mars – here’s everything we know about his plan.

Musk founded SpaceX in 2002 and since then has constantly reiterated one of his biggest goals is to help make humankind a multi-planetary species.

In order to achieve this otherworldly feat, the world’s richest man (at the time of publishing) turned his attention to the red planet, located approximately 33.9 million miles away from Earth.

Feb 23, 2022

Winter Recess — Navigating the Solar System

Posted by in categories: innovation, space travel

Mon, Feb 21


Just how big is space, and could we really explore the galaxy with the invention of light-speed engines? To try and make sense of all those HUGE numbers we hear when talking about space, we’ll first create a quick and easy map of the Solar System that shows its true scale. It’s a fun activity for kids and adults of all ages and requires only a blank piece of white paper (letter size), tape, scissors, and some coloring/drawing supplies. Next, we’ll use this map to learn about how we communicate with spacecraft and what it would mean to travel amongst the stars.

Registration: https://cornell.zoom.us/meeting/register/tJYsdeysqjgoH9a7QUoBzPjwWpBXtHAsKosE

Feb 22, 2022

Tesla pushes back

Posted by in categories: climatology, Elon Musk, space travel, sustainability

Tesla asks for help… SpaceX stacks… Elon Musk pays in Doge. It’s the free edition of Musk Reads #286.

And for our premium members — last week, you learned about Moon Bikes. This week, you will hear from author Jimmy Soni about what Musk’s earliest success reveals about his management style.

Continue reading “Tesla pushes back” »

Feb 21, 2022

Taking Earth with us: Is space exploration “sustainable”?

Posted by in categories: habitats, space travel, sustainability

Space colonization requires us to better understand how Earth sustains us.

In the coming decades, space agencies from around the world will be venturing farther out into space than ever before. This includes returning to the Moon (perhaps to stay this time), exploring Mars, and maybe even establishing human settlements on both. Beyond that, there are even proposals for establishing habitats in space that could accommodate millions. These plans build on decades of planning that go back to the dawn of the Space Age. In some cases, the plans are inspired by proposals made over half a century prior to that. While these grand visions for space exploration and colonization present many challenges, they also inspire innovative solutions. In particular, missions to deep-space require fresh thinking about environmental control and life-support systems (ECLSS) that can provide self-sufficiency in terms of air, water, food, and protection from radiation and the dangers of space. These are essential since missions that take astronauts far from Earth cannot depend upon resupply missions from the surface to Low Earth Orbit (LEO).

Continue reading “Taking Earth with us: Is space exploration ‘sustainable’?” »

Feb 20, 2022

New catalysts steer hydrogen fuel cells into mainstream

Posted by in categories: biological, chemistry, space travel, sustainability

Cornell chemists have discovered a class of nonprecious metal derivatives that can catalyze fuel cell reactions about as well as platinum, at a fraction of the cost.

This finding brings closer a future where fuel cells efficiently power cars, generators and even spacecraft with minimal greenhouse gas emissions.

“These less expensive metals will enable wider deployment of hydrogen fuel cells,” said Héctor D. Abruña, the Émile M. Chamot Professor in the Department of Chemistry and Chemical Biology in the College of Arts and Sciences. “They will push us away from and toward .”

Feb 20, 2022

A spacecraft just touched the Sun! But why didn’t it melt?

Posted by in category: space travel

Feb 19, 2022

Two New Studies Just Outlined The Basics of Building an Interstellar Light Sail

Posted by in categories: particle physics, space travel

For centuries, people have dreamed of being driven at speed across the vast oceans of space by winds of light.

As whimsical as the idea sounds, nudging reflective sails slowly towards the speed of light using nothing more than the punch of photons might be our only plausible shot at reaching another star inside of a single human lifetime.

It’s also far easier said than done. Particles of light might be fast, but they don’t push very hard. If you make a sail light enough to feel the inertia of radiation, then the constant barrage of photons could inadvertently damage its material.

Feb 19, 2022

Elon Musk’s SpaceX to split its private stock 10-for-1

Posted by in categories: Elon Musk, space travel

Elon Musk’s SpaceX is splitting the value of its common stock 10-for-1, CNBC has learned, with the company’s valuation having soared to more than $100 billion.

The split means that for each share of SpaceX stock owned as of Thursday, a holder now has 10 shares after the conversion. With SpaceX valued at $560 a share during its most recent sale, the split reduces SpaceX’s common stock to $56 a share, according to a company-wide email obtained by CNBC.

“The split has no impact on the overall valuation of the company or on the overall value of your SpaceX holdings,” the email said.

Feb 18, 2022

Chamath Palihapitiya, who took Virgin Galactic public, steps down from space company’s board

Posted by in category: space travel

Virgin Galactic announced Friday that Chairman Chamath Palihapitiya is stepping down from the space tourism company’s board of directors, effective immediately.

Palihapitiya’s SPAC, or special purpose acquisition company, took Virgin Galactic public in October 2019. The company’s stock has experienced volatile trading since then – climbing above $60 a share in the months ahead of Sir Richard Branson’s test spaceflight, but recently falling back below its public debut price with the beginning of commercial service delayed more than two years from what the company forecast.

The now-former chairman sold his personal Virgin Galactic stake in early 2021 that was worth over $200 million at the time. But Palihapitiya indirectly owns about 15.8 million shares through Social Capital Hedosophia Holdings.