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Huge satellite BlueWalker-3 has now unfurled – and yes it’s very bright

<p>If you look at the sky near Jupiter just after sunset, you might notice a bright new star, travelling fast across the sky.</p> <p>This star is no planet or far-flung galaxy – it’s the largest commercial communications satellite in low-Earth orbit, the BlueWalker 3 satellite which has now unfurled its solar panels.</p> <p>The apartment-sized satellite is a prototype from American company AST SpaceMobile, whose goal is to create a space-based mobile broadband network. This is only one of multiple satellites planned for the SpaceMobile constellation – some of which will be even bigger than BlueWalker 3.</p> <p>Amateur astronomers have been reporting sightings of BlueWalker 3 over the last few weeks, many with an approximate brightness of 2<sup>nd</sup> or 3<sup>rd</sup> magnitude. This is moderately bright, but not as bright as Sirius <a href="https://earthsky.org/astronomy-essentials/what-is-stellar-magnitude/" target="_blank" rel="noopener">– the brightest star in the night sky.</a></p> <figure class="wp-block-embed aligncenter is-type-rich is-provider-twitter wp-block-embed-twitter"> <div class="wp-block-embed__wrapper"> <div class="entry-content-asset"> <div class="embed-wrapper"> <div class="inner"> <div class="twitter-tweet twitter-tweet-rendered spai-bg-prepared" style="display: flex; max-width: 500px; width: 100%; margin-top: 10px; margin-bottom: 10px;"><iframe id="twitter-widget-0" class="spai-bg-prepared" style="display: block; position: static; visibility: visible; width: 400px; height: 550px; flex-grow: 1;" title="Twitter Tweet" src="https://platform.twitter.com/embed/Tweet.html?creatorScreenName=cosmosmagazine&dnt=true&embedId=twitter-widget-0&features=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&frame=false&hideCard=false&hideThread=false&id=1591249397953998849&lang=en&origin=https%3A%2F%2Fcosmosmagazine.com%2Fspace%2Fbluewalker-3-unfurlled-ast-space-x-elon-musk%2F&sessionId=96d02fb5de79caae06b83ca7b911f2ac94853601&siteScreenName=cosmosmagazine&theme=light&widgetsVersion=a3525f077c700%3A1667415560940&width=500px" frameborder="0" scrolling="no" allowfullscreen="allowfullscreen" data-tweet-id="1591249397953998849"></iframe></div> </div> </div> </div> </div> </figure> <p>This means that some astronomers prediction that it “could outshine all stars and planets in the night sky” hasn’t come to pass.</p> <p>However, <a href="https://en.wikipedia.org/wiki/List_of_brightest_stars" target="_blank" rel="noopener">a magnitude of 2 would put it in the rank of top 50</a> brightest stars.</p> <p>If you wanted to track it for yourself, <a href="https://heavens-above.com/" target="_blank" rel="noopener">website Heavens Above</a> has just created a new tool <a href="https://www.orbtrack.org/#/?satName=BLUEWALKER%203" target="_blank" rel="noreferrer noopener">to track the satellite.</a> <a href="https://in-the-sky.org/satpasses.php?gotosat=53807" target="_blank" rel="noreferrer noopener">You can also use In The Sky and note your location.</a> Note that it can only be seen just after the Sun has gone down, as the Sun from below the horizon reflects onto the satellite, and makes it bright.</p> <figure class="wp-block-embed aligncenter is-type-rich is-provider-twitter wp-block-embed-twitter"> <div class="wp-block-embed__wrapper"> <div class="entry-content-asset"> <div class="embed-wrapper"> <div class="inner"> <div class="twitter-tweet twitter-tweet-rendered spai-bg-prepared" style="display: flex; max-width: 500px; width: 100%; margin-top: 10px; margin-bottom: 10px;"><iframe id="twitter-widget-1" class="spai-bg-prepared" style="display: block; position: static; visibility: visible; width: 400px; height: 675px; flex-grow: 1;" title="Twitter Tweet" src="https://platform.twitter.com/embed/Tweet.html?creatorScreenName=cosmosmagazine&dnt=true&embedId=twitter-widget-1&features=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&frame=false&hideCard=false&hideThread=false&id=1594885656370909186&lang=en&origin=https%3A%2F%2Fcosmosmagazine.com%2Fspace%2Fbluewalker-3-unfurlled-ast-space-x-elon-musk%2F&sessionId=96d02fb5de79caae06b83ca7b911f2ac94853601&siteScreenName=cosmosmagazine&theme=light&widgetsVersion=a3525f077c700%3A1667415560940&width=500px" frameborder="0" scrolling="no" allowfullscreen="allowfullscreen" data-tweet-id="1594885656370909186"></iframe></div> </div> </div> </div> </div> </figure> <p>The goal with AST SpaceMobile is to create cellular broadband anywhere on the globe. Similar to Space X’s Starlink, many satellites are required to create full coverage around the world.</p> <p>Astronomers and satellite operators are currently at odds over these satellite constellations. The more there, the more interference is likely for both optical and radio astronomy.</p> <p>There’s also the question of what we – as humans – are comfortable with. Having 100s of these satellites in the sky at any one time would mean that when we look up, many of the bright lights in the sky would not be stars but satellites instead.</p> <figure class="wp-block-embed aligncenter is-type-rich is-provider-twitter wp-block-embed-twitter"> <div class="wp-block-embed__wrapper"> <div class="entry-content-asset"> <div class="embed-wrapper"> <div class="inner"> <div class="twitter-tweet twitter-tweet-rendered spai-bg-prepared" style="display: flex; max-width: 500px; width: 100%; margin-top: 10px; margin-bottom: 10px;"><iframe id="twitter-widget-2" class="spai-bg-prepared" style="display: block; position: static; visibility: visible; width: 400px; height: 699px; flex-grow: 1;" title="Twitter Tweet" src="https://platform.twitter.com/embed/Tweet.html?creatorScreenName=cosmosmagazine&dnt=true&embedId=twitter-widget-2&features=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&frame=false&hideCard=false&hideThread=false&id=1595568298414215168&lang=en&origin=https%3A%2F%2Fcosmosmagazine.com%2Fspace%2Fbluewalker-3-unfurlled-ast-space-x-elon-musk%2F&sessionId=96d02fb5de79caae06b83ca7b911f2ac94853601&siteScreenName=cosmosmagazine&theme=light&widgetsVersion=a3525f077c700%3A1667415560940&width=500px" frameborder="0" scrolling="no" allowfullscreen="allowfullscreen" data-tweet-id="1595568298414215168"></iframe></div> </div> </div> </div> </div> </figure> <p>There’s also potentially issues about collisions in orbit <a href="https://arstechnica.com/science/2020/11/nasa-objects-to-new-megaconstellation-citing-risk-of-catastrophic-collison/" target="_blank" rel="noopener">making our skies unsafe.</a></p> <p>There’s currently discussions happening between astronomers, satellite operators and the United Nations Committee on Peaceful Uses of Outer Space (COPUOS) about what is reasonable for satellites to be able to do in the night sky. The next meeting <a href="https://www.skatelescope.org/news/un-body-to-continue-deliberating-on-how-to-protect-dark-quiet-skies/" target="_blank" rel="noopener">will occur in 2023</a>.</p> <p>“States are generally supportive, and we succeeded in ensuring that the radio and optical interference effects of large satellite constellations on astronomy are considered by the subcommittee,” Head of Assurance at the SKAO, Tim Stevenson said after the last meeting in February.</p> <p>“We are looking forward to preparing and sustaining our case in COPUOS, which is the paramount forum in the world to deal with this issue.”</p> <p><img id="cosmos-post-tracker" style="opacity: 0; height: 1px!important; width: 1px!important; border: 0!important; position: absolute!important; z-index: -1!important;" src="https://syndication.cosmosmagazine.com/?id=226135&title=Huge+satellite+BlueWalker-3+has+now+unfurled+%E2%80%93+and+yes+it%E2%80%99s+very+bright" width="1" height="1" data-spai-target="src" data-spai-orig="" data-spai-exclude="nocdn" /></p> <div id="contributors"> <p><em><a href="https://cosmosmagazine.com/space/bluewalker-3-unfurlled-ast-space-x-elon-musk/" target="_blank" rel="noopener">This article</a> was originally published on Cosmos Magazine and was written by Jacinta Bowler. </em></p> <p><em>Image: AST</em></p> </div>

Technology

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6 surprising ways you are wasting money

<p class="p1">You wouldn’t let a leaky bathroom tap keep dripping water, right?<br /><br />So why would you let these money-wasting habits go on without plugging the leak?<br /><br />Check out these 6 common expenses that may be costing you more money than you realise.</p> <div class="field field-name-field-slide-title field-type-text field-label-hidden"> <div class="field-items"> <div class="field-item even"><strong>1. Using an old mobile phone plan</strong></div> <div class="field-item even"> <p>You may not have upgraded your phone in a few years because it works just fine, but that doesn’t mean you shouldn’t take a look at your phone plan to make sure that it still suits your needs.</p> <p>Every time your contract ends, you should be shopping around for better deals.</p> <p>Your phone plan should come with a certain amount of free data and call minutes, but if you keep busting your limit every month and paying extra, then it’s not the most cost-effective plan for you.</p> <p>Speak to your service provider to check your average monthly usage and change to a plan that works for you.</p> <p>For example, you may use more data than call minutes so look for a plan that provides more data.</p> <p>With several companies vying for business, you should be able to find a plan that will suit your budget and your needs better. </p> <div class="field field-name-field-slide-title field-type-text field-label-hidden"> <div class="field-items"> <div class="field-item even"><strong>2. Using an old broadband plan</strong></div> </div> </div> <div class="field field-name-field-slide-image field-type-image field-label-hidden"> <div class="field-items"> <p>The same goes with broadband plans for your home surfing.</p> <p>If you’re on an old contract, you could be paying more for a slower speed, so always check that you’ve got the best deal once your contract ends.</p> <p>You can even approach your current provider to ask for better deals in order to retain you as a customer.</p> <p>Some providers offer cheaper packages if you bundle your broadband and mobile phone services together so do some research to see if that works for you.</p> <p><strong>3. Paying credit card annual fees</strong></p> <p>Banks will often charge you annual fees if you want to keep using their credit cards but you can easily get this waived simply by calling in and requesting a fee waiver.</p> <p>If the bank refuses to waive the fees, this might be a good opportunity to cancel the card and look for a new one with a different bank.</p> <p>New credit cards often come with promotional gifts that you can enjoy such as rebates or free luggage.</p> <p>Just remember to cancel this card too if the bank doesn’t waive the fees.</p> <p><strong>4. Paying for services you don't use</strong></p> <p>The biggest culprit is arguably the gym.</p> <p>Many people sign up at the start of the year when their resolve to get healthy is at its strongest.</p> <p>Then March comes along and all that resolve disappears, along with the fees that you’ve paid.</p> <p>Do an audit of all the monthly membership fees you’re paying for and be honest to yourself about what you really need and what you’re not fully utilising.</p> <p>For example, you may really use Spotify every day but you’re not home long enough to enjoy your cable TV services.</p> <p><strong>5. Buying food you don't eat</strong></p> <p>Roughly one-third of all the food produced in the world, or 1.3 billion tonnes, get lost or wasted annually.</p> <p>We’re guilty of wasting food when we buy more than we consume, either by buying big portions that can’t finish, or going overboard with groceries that end up going bad and getting thrown away.</p> <p>So, it’s a good habit to buy only what you need and then using up everything you’ve bought.</p> <p><strong>6. Buying a cup of expensive coffee daily</strong></p> <p>Sure, you need your caffeine in the morning just to function.</p> <p>However, instead of forking over $5 daily at the latest hipster cafe, you might want to cut down to just two or three coffee runs a week, and make a cup in the office pantry the rest of the time.</p> <p>That savings of just $10 a week can add up to over $500 a year!</p> </div> </div> </div> </div> </div> <p class="p1"><em>Written by Siti Rohani. This article first appeared in <a href="http://www.readersdigest.com.au/money/6-surprising-ways-you-are-wasting-money">Reader’s Digest</a>. For more of what you love from the world’s best-loved magazine, <a href="http://readersdigest.innovations.co.nz/c/readersdigestemailsubscribe?utm_source=over60&amp;utm_medium=articles&amp;utm_campaign=RDSUB&amp;keycode=WRN87V">here’s our best subscription offer.</a></em></p> <p><img style="width: 100px !important; height: 100px !important;" src="https://oversixtydev.blob.core.windows.net/media/7820640/1.png" alt="" data-udi="umb://media/f30947086c8e47b89cb076eb5bb9b3e2" /></p>

Money & Banking

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The surprising things in your home that could be wrecking your Wi-Fi connection

<p>We’ve all become so addicted to Wi-Fi these days, it’s gotten to the point where a slow internet connection is almost completely unbearable. And while you can fork over a mint to get your hands on the “best” plan, there are many things you’re doing around the house day-to-day that could be dramatically slowing your connection.</p> <p>And it all comes down to the placement of your router.</p> <p>Something as simple as placing your router near an electronic device like a TV, fish tank or event Christmas tree lights can result in a dramatic drop in speeds.</p> <p>The reason this is the case is that every day electrical objects all emit signals that can interfere with that of your Wi-Fi connection, restricting your potential speed.</p> <p>“We are increasingly reliant on the internet for so many aspects of our lives and it's therefore so important that we can trust in the reliability of our service,” said Meredith Sharples, director at Post Office Telecoms.</p> <p>“However, the public told us they suffer from a slow internet connection, have had their connection drop at random times and experience a poor Wi-Fi connection in certain rooms.</p> <p>“We also learned that many are not aware of the simple steps they can take to ensure their home is optimised to receive the best broadband connections possible.”</p> <p><strong>Ways to increase your Wi-Fi speed:</strong></p> <ul> <li>Place router away from other electronic devices</li> <li>Ensure the Wi-Fi router is plugged into your master socket</li> <li>Protect your router with a password</li> <li>Use the latest version of your internet browser</li> </ul> <p>Are you happy with your Wi-Fi connection?</p>

Technology