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Perth: (The Conversation) Last week, three tiny Australian satellites from Curtin University's <keyword id="23932163" type="General" weightage="20" keywordseo="Binar-Space-Program" source="keywords" meta.keywordsubtype="org" meta.entityname="Binar Space Program" meta.hostid="261" meta.entityid="Binar Space Program">Binar Space Program</keyword> burned up in Earth's atmosphere. That was always going to happen. In fact, Binar means "fireball" in the Noongar language of the First Nations people of Perth. When a satellite is in low Earth orbit (2,000km or less), it experiences orbital decay as it drags closer and closer to the surface, eventually burning up. But these cube satellites (<keyword id="21533654" type="General" weightage="20" keywordseo="CubeSats" source="keywords">CubeSats</keyword>), known as Binar-2, 3 and 4, entered the atmosphere much sooner than originally planned. They only lasted for two months - a third of what was expected. This significantly reduced valuable time for science and testing new systems. The reason for their untimely demise? Our Sun has kicked into high gear, and the Binar satellites are far from the only casualty. Recent high <keyword id="20792842" type="General" weightage="100" keywordseo="Solar-activity" source="keywords">solar activity</keyword> has been causing an unexpected headache for satellite operators in the last few years, and it's only increasing. <h2>Why is the Sun so active? </h2> Solar activity includes phenomena such as sunspots, solar flares and solar wind - the stream of charged particles that flows toward Earth. This activity is a product of the Sun's ever-changing magnetic field, and approximately every 11 years, it completely flips. At the midpoint of this cycle, solar activity is at its highest. While this cycle is known, specific solar activity is challenging to predict - the dynamics are complex and solar forecasting is in its infancy. In the last few months, indicators of solar activity were more than one and a half times higher than predictions for this point in the current cycle, labelled <keyword id="22712826" type="General" weightage="20" keywordseo="solar-cycle-25" source="keywords">solar cycle 25</keyword>. <h2>The impact of <keyword id="20087207" type="General" weightage="20" keywordseo="space-weather" source="keywords">space weather</keyword> </h2> Space weather refers to the environmental effects that originate from outside our atmosphere (mostly the Sun). It affects us on Earth in a variety of noticeable and unnoticeable ways. The most obvious is the presence of auroras. In the past few months, auroras have been visible far more intensely and closer to the equator than in the last two decades. This is a direct result of the increased solar activity. Space weather, and solar activity in particular, also creates additional challenges for satellites and satellite operators. Higher solar activity means more solar flares and stronger solar wind - resulting in a higher flux of charged particles that can damage or disrupt electrical components on satellites. It also means an increase in ionising radiation, resulting in a higher dose for astronauts and pilots, and potential disruptions to long-distance radio communications. But for satellites in low Earth orbit, the most consistent effect of solar activity is that the extra energy gets absorbed into the outer atmosphere, causing it to balloon outward. As a result, all satellites less than 1,000km from Earth experience a significant increase in <keyword id="23473319" type="General" weightage="20" keywordseo="atmospheric-drag" source="keywords">atmospheric drag</keyword>. This is a force that disrupts their orbit and causes them to fall towards the planet's surface. Notable satellites in this region include the International Space Station and the Starlink constellation. These satellites have thrusters to counteract this effect, but these corrections can be expensive. Low Earth orbit also contains many university satellites, such as the Binar CubeSats. Cube satellites are rarely equipped with tools that can adjust their altitude, so they're entirely at the mercy of space weather. <h2>What happened to Binar? </h2> The Binar Space Program is a satellite research program operating out of Curtin University. It aims to advance our understanding of the Solar System and lower the barrier for operating in space. The program began operations with its first satellite, Binar-1, in September 2021. This was less than a year into solar cycle 25 when solar activity was relatively low. In these conditions, the ten-centimetre cube satellite started at an altitude of 420km and survived a full 364 days in orbit. The program's follow-up mission - Binar-2, 3, and 4 - were three equally sized CubeSats. However, they were expected to last approximately six months owing to the extra surface area from new deployable solar arrays and a forecast increase in solar activity. Instead, they only made it to two months before burning up. While cube satellite missions are relatively cheap, the premature ending of a mission will always be costly. This is even more true for commercial satellites, highlighting the need for more accurate space weather forecasting. The good news is the Sun will calm down again. Despite the current unexpectedly high solar activity, it will likely slow down by 2026, and is expected to return to a solar minimum in 2030. While this was not an explicit goal of the mission, the Binar Space Program has now poignantly demonstrated the dramatic effects of solar activity on space operations. While the untimely loss of Binar-2, 3 and 4 was unfortunate, work has already begun on future missions. They are expected to launch into far more forgiving space weather. (The Conversation).

Right now, the Sun is far more active than predicted - and small satellites are paying the price

<ul class="summary-list"><li>Baiju Bhatt, the cofounder of trading app Robinhood, has a new space startup.</li><li>Aetherflux aims to launch a constellation of satellites to transmit solar power to Earth using infrared lasers.</li></ul>When Baiju Bhatt co-founded the stock trading app <a target="_blank" class="" href="https://www.businessinsider.com/robinhood-collapse-what-happened-retail-investing-meme-stocks-future-finance-2022-2">Robinhood</a> in 2013 with his college best friend, Vlad Tenev, the aim was to "democratize finance for all."Robinhood's no-fee, gamified approach to investing made capital markets more accessible than ever before, leading to an IPO in 2021.After over a decade at the company, Bhatt stood down as Robinhood's chief creative officer in March to pursue what was described at the time as "other entrepreneurial interests."In October, Bhatt announced he was launching Aetherflux, a Silicon Valley-based space startup.Aetherflux aims to create a constellation of satellites in low Earth orbit (LEO) that will collect solar power and beam it down to receptors on Earth using infrared lasers.Just as <a target="_blank" class="" href="https://www.businessinsider.com/inside-starlink-spacex-satellite-internet-business-constellation-fleet-elon-musk-mars">Elon Musk's Starlink</a> constellation has transformed communications, Bhatt hopes Aetherflux will revolutionize energy, he told Business Insider in an interview.The receptors will be just 10 meters in diameter, Bhatt said, meaning they can be placed virtually anywhere and theoretically provide power to remote locations that would otherwise be too expensive or dangerous to reach."If we succeed, we unlock a renewable energy source for humanity that can be delivered virtually anywhere," he wrote in a <a target="_blank" class="" href="https://www.linkedin.com/pulse/allow-me-re-introduce-myself-baiju-bhatt-nu1ic/?trackingId=xecx1MNjQxGa6fapJvT2fA%3D%3D">LinkedIn post</a> announcing Aetherflux.If it works, far more solar power can be captured in orbit than through the atmosphere at ground level, and there would be no nighttime or weather disruptions to the power source. It would also free up land used for solar farms on Earth.Aetherflux plans to start by powering military operations in remote locations or remote mining operations, Bhatt said.<div type="image" title="A profile of Baiju Bhatt smiling in a black t-shirt in front of a beige background." height="3553" width="5324" msid="114432481" hostid="261" sizebytes="611312"></div>Bhatt hopes that a single receptor will one day be able to capture enough power for a small neighborhood of homes. He added that they'd need around 100 satellites to provide continuous power to one location.The idea of space-based solar power has existed for decades, but theories have generally rested on large constructions being sent into orbit and using microwaves to transmit energy.In January 2023, the California Institute of Technology launched a solar space-power demonstrator satellite into orbit for a yearlong mission to test out a range of potential approaches.Caltech's president, Thomas F. Rosenbaum, <a target="_blank" class="" href="https://www.caltech.edu/about/news/space-solar-power-project-ends-first-in-space-mission-with-successes-and-lessons">said the project</a> had shown them that solar power beamed from space "is still a future prospect" but that it "should be an achievable future."Aetherflux wants to do things differently by using infrared lasers and a modular approach.The science has already been demonstrated; it's just going to be an engineering and economic feat to prove it can be done from space, Bhatt said.To begin with, Aetherflux plans to send a single satellite into orbit by the first quarter of 2026 to demonstrate that solar energy transmission is possible.<h2 id="f76e6857-d783-49d8-94bf-ab950b9759df">The right time to be in space</h2>Though the career jump from finance to the space industry may seem unusual, Bhatt said space has been his "lifelong calling."NASA was a part of Bhatt's childhood. His father moved to the US from India to pursue physics and got a job at NASA's Langley Research Center in the 1990s studying atmospheric sciences.With a bachelor's in physics and a master's in mathematics, both from Stanford, Bhatt thought he'd be a physicist too. So, Robinhood was a "bit of a detour," he told BI.He is still a board member but has stepped back from day-to-day operations.One lesson Bhatt said he learned from running the trading app was how powerful capitalism could be in accelerating innovation."If you can take a problem that's been stagnating and you can create a capitalist system around it where people can make money doing something, you'll see the rate of progress really speed up," he said.<div type="image" title="Baiju Bhatt (right) and Vlad Tenev, founders of the online brokerage Robinhood." height="4160" width="6240" msid="114432476" hostid="261" sizebytes="601100"></div>After meeting with people working on power for DARPA at the beginning of this year and seeing the <a target="_blank" class="" href="https://www.businessinsider.com/why-spacex-starship-launch-five-huge-deal-space-travel-2024-10">timeline Starship is on</a>, Bhatt decided that the best opportunities were now in space.Since 2009, the sum of private investments in space startups has soared from essentially nothing to $327.3 billion, according to the latest "<a target="_blank" href="https://spacecapital.docsend.com/view/9d69zpfz4ddms3ry">Space Investment Quarterly</a>" report published by venture capital and angel-investment firm Space Angels.The industry's value is expected to continue booming. <a target="_blank" class="" href="https://www.mckinsey.com/industries/aerospace-and-defense/our-insights/space-the-1-point-8-trillion-dollar-opportunity-for-global-economic-growth">McKinsey</a> estimates that the global space economy will be worth $1.8 trillion by 2035, accounting for inflation, up from $630 billion in 2023."It's hard to find something more exciting and impactful than space," said Matthew Weinzierl, a professor of the economics of space at Harvard Business School and coauthor of the upcoming book "Space to Grow.""This really is a new frontier, one where technological innovation can create new markets and solve real problems, often in ways we haven't thought of before," he said.Weinzierl said that in the past two decades, the US government has created pathways for commercial players, enabling market forces to take hold."Prices to orbit have dropped, launch availability has soared, and a wave of entrepreneurs are finding new ways to create value," he said.<div type="image" title="SpaceX's Super Heavy booster as it returned to its launch site, with the sun rising in the background." height="1031" width="1920" msid="114432482" hostid="261" sizebytes="52022"></div>With so many more commercially available products, space has <a target="_blank" class="" href="https://www.businessinsider.com/starship-launch-success-elon-musk-vision-cheap-space-travel-closer-2024-3#:~:text=%22With%20Starship%2C%20SpaceX%20is%20poised,in%20an%20email%20on%20Thursday.">never been cheaper</a>.Aetherflux is an example of how companies are using off-the-shelf solutions to speed up development. Its satellites are purchased readymade from satellite bus provider <a target="_blank" href="https://www.businessinsider.com/palmer-luckey-anduril-apex-defense-tech-space-satellite-surveillance-2024-10">Apex</a>, the high-powered lasers it plans to use are commercially available, and it'll be using <a target="_blank" href="https://www.businessinsider.com/spacex-launch">SpaceX</a> as a launch partner for its 2026 mission."The part that we're building is the actual optical design, the control systems, and the power transmission link, as well as the ground station," said Bhatt.<h2 id="5dda5318-030a-431a-91ff-f205b537a068">The future of Aetherflux</h2>When he spoke with BI, Bhatt had just moved into a lab facility in the Bay Area. With a team of 10 employees, he will begin iterating ground tests, developing the system design, and working with regulators.He's self-funding the project "completely," he told BI. As one of Robinhood's cofounders, Bhatt's net worth spiked after its IPO in 2021. He is worth around $1.7 billion, <a target="_blank" class="" href="https://www.forbes.com/profile/baiju-bhatt/">Forbes reports.</a>Although access to space has become more routine and affordable, Weinzierl said there is still a lot of uncertainty around the industry. Some of the ideas and businesses being developed today won't survive, but they'll be "the foundation that tomorrow's entrepreneurs will learn from and build on," he said.A self-proclaimed science nerd, Bhatt named his startup after a 19th-century theory about a pervasive medium called the aether, which physicists believed light traveled through."Einstein came along in 1905 and was basically like, nah, that stuff's all wrong. Light is the same in every reference frame," said Bhatt.So Aetherflux is named after a disproven scientific theory? Yes, Bhatt agreed with amusement. But he's "laser-focused" on the first mission and adamant that Aetherflux won't fall into the same bracket as its namesake."Space is hard," he admitted, "but we're committed to demonstrating this and making it happen."

Robinhood's cofounder has joined the rapidly growing commercial space race, and wants to beam solar power from satellites to earth

Smelliest planets in and around our solar system

Stunning timelapse video shows the northern lights from space thanks to a solar storm

The northern lights may appear stunning from Earth, but it turns out they look even better from space.NASA astronaut Matthew Dominick released stunning timelapse footage of auroras dancing above Earth this week, as seen from the International Space Station.The video, posted on August 12, shows the moon setting and the subsequent sunrise amid streams of red and green.The sunrise illuminates an orbiting Soyuz spacecraft in blue."The aurora have been amazing the past few days. Great timing for trying out a new lens that recently arrived on Cygnus," Dominick posted <a target="_blank" href="https://x.com/dominickmatthew/status/1823081465753825718">on X</a>, referring to the US Cygnus spacecraft.Dominick said he captured the footage using an Arri Zeiss 15mm, T1.8 lens with a 1/3 s exposure and a 1/2 s interval.He also posted static photos from the aurora borealis he saw from space, showing the moon setting amid the lights.<div type="image" title="The moon makes it way towards the horizon to set amongst red and green aurora, seen from space" height="2184" width="3276" msid="112547662" hostid="261" sizebytes="1244926"></div>He explained that while the image may look "upside down", that is how astronauts are usually oriented in their observation area aboard the spacecraft, and that images of this kind are generally rotated when posted on social media.He did not specify what region of the Earth they were flying over. However, a solar storm over the weekend sparked auroras in both the northern and southern hemispheres. According to<a target="_blank" class="" href="https://www.scientificamerican.com/article/drop-everything-and-watch-this-stunning-video-of-northern-lights/"> Scientific American</a>, the northern lights appeared as far south as Texas and Mississippi.Dominick, who is a NASA astronaut and a US Navy Commander, is serving a six-month term on board the International Space Station as a flight engineer.He told Scientific American that he has been working on capturing time-lapse videos from the ISS for some time."It was intense," he told the publication. "I'm up here with a couple of veteran folks that have spent more than a year of their life in space across missions, and all of them have unanimously said they've never seen anything like it."There are likely to be more chances to catch an aurora display in the coming years.That's because our sun has an <a target="_blank" href="https://www.businessinsider.com/nasa-time-lapse-video-sun-solar-cycle-10-years-2020-7">11-year cycle</a> in which it increases and decreases in activity. We're approaching solar maximum when the sun reaches peak activity. Experts have previously predicted this should <a target="_blank" href="https://www.businessinsider.com/next-solar-maximum-2025-what-expect-cycle-2023-4">happen in 2025</a>.While that may create more stunning auroras, it could also cause some problems on Earth.As more <a target="_blank" href="https://www.businessinsider.com/coronal-hole-on-sun-blasts-solar-wind-toward-earth-2023-3">sunspots</a> appear on the surface of our star during its <a target="_blank" href="https://www.businessinsider.com/nasa-video-footage-shows-sun-solar-activity-increasing-2023-5">active period</a>, it may prompt more <a target="_blank" href="https://www.businessinsider.com/solar-storms-flares-dangerous-effects-earth-sun">solar storms</a>, creating bursts of electromagnetic energy that can affect everything from the power grid to GPS signals.We're not in any immediate danger, however. Physicists predict that this cycle will not be the biggest we've ever seen, and we're getting better at spotting storms <a target="_blank" href="https://www.businessinsider.com/solar-flare-coronal-eruption-geomagnetic-storm-effects-safety">to be able to prepare for them</a>.

Billionaire <keyword id="19929098" type="General" weightage="20" keywordseo="gautam-adani" source="keywords">Gautam Adani</keyword>'s group will supply <keyword id="19914923" type="General" weightage="20" keywordseo="clean-energy" source="keywords">clean energy</keyword> to power Google's cloud services and operations in India, the two firms said on Thursday. <keyword id="19955648" type="General" weightage="100" keywordseo="Adani-Group" source="keywords" meta.keywordsubtype="org" meta.entityname="Adani Group" meta.hostid="261" meta.entityid="Adani Group">Adani group</keyword> will supply 61.4 megawatt of electricity from a new <keyword id="21342349" type="General" weightage="20" keywordseo="solar-wind-hybrid-project" source="keywords">solar-wind hybrid project</keyword> located at its 30 gigawatt (GW) Khavda renewable energy park in Gujarat. Google powers most of its cloud operations and services through electricity procured from the grid and is planning to run the entire operations on clean energy by 2030. Adani is expected to start commercial operations in the third quarter of 2025. At the '<keyword id="23413952" type="General" weightage="20" keywordseo="Google-for-India" source="keywords">Google for India</keyword>' event, the search giant also announced a partnership with CleanMax for sourcing 125.4 MW of clean energy to power its offices and cloud regions in India. Of the contracted volumes, 66 MW solar energy will come from Rajasthan and 59.4 MW wind energy from Karantaka. "These projects are expected to start commercial operations in Q4 2025 and will deliver <keyword id="22243112" type="General" weightage="20" keywordseo="carbon-free-energy" source="keywords">carbon-free energy</keyword> to the grid where Google operates offices and cloud regions in India," Google said. While Google made the announcement at the 'Google for India' event here, the Adani Group gave details in a statement. "Through this partnership Adani will supply clean energy from a new solar-wind hybrid project located in the world's largest renewable energy plant at Khavda, Gujarat. This new project is expected to start commercial operations in the third quarter of 2025," the Adani group statement said. This innovative collaboration will help advance Google's 24/7 carbon-free energy goal by ensuring cloud services and operations in India are supported by clean energy and thereby contribute to the <keyword id="20289318" type="General" weightage="20" keywordseo="sustainable-growth" source="keywords">sustainable growth</keyword> of Google in India. Adani had previously announced plans to set up data centres run on clean energy. It had in October 2022 leased 4.64 lakh square feet of space at its data centre in Noida to Raiden Infotech, an entity of Google.

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