astronomy
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Russian eclipse enthusiasts launch floating globe to shoot the moon
That globe, which launched June 15th, was attached to a weather balloon, and apparently carried with it a GPS / GSM tracker, two GoPro cameras, two Canon cameras, and one Buzz Lightyear figurine. The mission? Capture last week's lunar eclipse. Lucky for us, the mission was successful and both the cartoon astronaut and the accompanying film were successfully recovered. The resulting photographs are quite stunning, but you don't have to take our word for it. If you missed Google's live stream, you can catch up with Buzz and the team at the source link below.
Pentax releases O-GPS1 add-on for DSLRs, appeals to astronomy nuts
Pentax's Optio WG-1 GPS point-and-shoot satisfied geotaggers out of the box, but owners of its K-5, K-r and 645D DSLRs have had to make do with third-party taggers like the PhotoTrackr or Eye-Fi. The new hotshoe-mounted O-GPS1 module fixes that oversight by recording latitude, longitude, altitude, Coordinated Universal Time and shooting angle. Everyday snappers might find an extra hotshoe attachment cumbersome, but astro-photography enthusiasts could well be enticed by the device's interesting "ASTROTRACER" function. This helps you take clearer photos of celestial bodies by using the in-built sensors to calculate a star's movement and then employing the camera's shake reduction system to compensate. Sounds clever, but be advised: this module is only for Pentax DSLRs -- and only for very specific models at that. You'll get full functionality with the K-5 and K-r cameras, and geotagging (no ASTROTRACER) with the 645D. Oh, and you'll need to make sure your camera's firmware is up-to-date. Peer carefully through that lens and you'll see the O-GPS1 heading for a July landing, priced at $250. [Thanks, Iddo]
Astronomers snap black hole murder in graphic detail (video)
We tend to imagine a black hole sucking everything around it straight into oblivion. The truth, however, is even more gruesome. Astronomers have just captured an ultra hi-res image of our neighbouring galaxy, Centaurus A, and it helps to reveal what actually happens. Matter is yanked helplessly towards a black hole at the galaxy's core, but it refuses to die quietly. For some unknown reason, it erupts as it falls, spewing out vast plumes of particles -- like blood from celestial murder. These death throes emit radio waves, allowing us to witness them using radio telescopes even though we are 12 million light-years away. If only we were closer; if only we could intervene. Alas, all we can do is watch the video after the break and hit the source links for a fuller explanation -- though, admittedly, none of those sound like awful options.
Microsoft's Kinect navigates the universe thanks to Windows SDK (video)
Microsoft's WorldWide Telescope -- a collaboration with NASA that explores high-resolution photos and 3D renders of the cosmos -- was already pretty cool, but Redmond upped the ante to incredible with the addition of a Kinect depth camera at MIX 11. Using a piece of software created with the company's upcoming Kinect SDK for Windows, Microsoft gave us a virtual tour of Earth and the surrounding stars, guided by a deep-voiced narrator holding the whole world in his hands. Of course, you'd already know that if you watched the video above, so what are you waiting for? Oh, and we've got more MIX video on the way, so stay tuned. Myriam Joire contributed to this report.
Distant Suns celebrates 50th Anniversary of Yuri Gagarin's epic ride with a free app
It was 50 years ago today that the son of a Russian farmer rocketed into space and became the first man to orbit the earth. Yuri Gagarin's 108 minute trip in his Vostok spacecraft ushered in the era of manned space flight, as the US followed up with the Mercury, Gemini, and later the Apollo missions to the moon. In 1975 the US and Russia stopped competing and began the Apollo-Soyuz missions. Joint missions continue today on the International Space Station. To celebrate the event, Distant Suns 2 for the iPhone and iPod touch is free today only. The app is a pretty complete star map, with 130,000 stars, 88 constellations and the Messier catalog of galaxies, nebula and star clusters. I've reviewed the app in the past and found it a worthwhile purchase. It's even better for free. Author Mike Smithwick produced one of the first computerized star map programs way back in 1985 for the Amiga 1000. Mike also produced Distant Suns 3 for the iPhone and iPad, which is even more sophisticated. It's on sale for US$4.99 today only. A couple other astronomy app notes of interest. Star Walk, the award winning astronomy guide has been updated to include augmented reality. It activates the camera and superimposes accurate star positions over the portion of sky you are pointing to. It's very cool to use during the day as well because it will show you where the planets and other objects are that are made invisible by the sun. The iPhone version of Star Walk is on sale for $0.99, and that sale ends today. The app also now supports TV out on the iPhone 4. %Gallery-121002%
Visualized: Mercury
It may look like a spotty, monochromatic water melon, but we're taking NASA's word on this one -- the image above is the very first taken from an orbiting spacecraft of our solar system's innermost planet. Mercury has been snapped by NASA's MESSENGER probe, which is currently preparing itself to start on its elliptical trajectory around the planet and commence collecting data about it in earnest. Hit the links below to learn more about this bold exploration project.
NASA's MESSENGER begins orbit around Mercury, will start beaming back science early next month
Mercury, the innermost planet of our humble little solar system, is getting itself an orbital friend. The MESSENGER space probe (known as MErcury Surface, Space ENvironment, GEochemistry and Ranging to his nearest and dearest) is concluding a six-year sojourn through the dark void of space with an elliptical orbit around the tiny and otherwise inhospitable planet. Systems are about to get turned on and fully checked next week, before the data-gathering phase kicks off in earnest on April 4th. Science, isn't it beautiful?
Macworld Expo 2011: Vito Technology updates the Walk apps
Russian company Vito Technology was in one of the booths around the Mobile App Showcase at Macworld 2011 last week, and they kindly sat down to show off new versions of their apps, all coming up in the next month or so as free updates on the App Store. Popular astronomy app Star Walk was first. It's getting a visual enhancement in the next version, with a brand new sky and a new look to the stars that's more visually interesting than the current setup. The other feature that will be added is a "calendar of celestial events," where things like meteor showers or lunar eclipses will be tracked (per your location) so that you can see when something interesting is coming up. Later on, Vito wants to add other cultural displays to the app, including constellation charts and other star maps from Hawaiian, Arabic and Native American viewpoints. Star Walk is also going to be integrated into some of Macmillan's science textbooks, so students will be able to work directly with the app as they learn. We also got to see updates for the other Vito apps, including Solar Walk and a very different Geo Walk.
Why did Pluto lose its planet status? Because it never mattered enough
It's kind of hard to accept, Pluto has always been our favorite underdog, but the truth is that the Solar System's ninth planet was never really significant enough to earn that designation. Such is the coldly logical reason given for its removal from the planetary annals by a man who had a lot to do with its demise. Caltech astronomer Mike Brown discovered Eris, what he'd hoped was the tenth planet, back in 2005, but its extreme distance from the Sun and diminutive (by planetary standards) dimensions disqualified it from consideration. Unfortunately, its discovery is what doomed Pluto to be downgraded to a "dwarf planet," though Mike's not shedding too many tears over it. In fact, he's gone and written a book about the whole thing, the smug planet destroyer that he is. You don't have to buy it to learn more, however, as the source link has an interview with Mike all ready and waiting.
Apple engineer uses Lego to rebuild ancient Greek mechanism, will surely try to patent it (video)
The Antikythera Mechanism is what you call truly old school technology. Argued to be the world's oldest known computer, this ancient Greek invention was used some time circa 100BC to calculate and "predict celestial events and eclipses with unprecedented accuracy." Skipping past the two millennia in which it lay lost on a sea floor somewhere, the Mechanism has now been recreated by an Apple software engineer by the name of Andrew Carol, who has lovingly pieced 1,500 Lego Technic blocks together, creating 110 gears and four gearboxes in total. Each box is responsible for performing one piece of arithmetic, and when the resulting machine is fed with appropriate calendar data, it spits out a (hopefully accurate) prediction for the next time a solar eclipse should occur. All well and good, but we're really just amazed by the beauty of those gears working. Check them out after the break.
First RS-232 to dock connector interface controls telescope
In the video on the next page you'll see a demo of the SkySafari app from Southern Stars. It's a great app for astronomy buffs, complete with gorgeous renderings of the night sky and an illustrated astronomy textbook in one neat little package. You'll also see a product called SkyFi, which is a WiFi dongle that connects to telescopes using an RS-232 port (sometimes old school is the best school, yes). Finally, you'll see a first: the very first 30-pin dock connector-to-RS-232 port cable used by SkySafari to control a telescope. It's called SkyWire and seeing an iPhone control a telescope is a treat. We're told the cable starts shipping in December and will be sold as an Apple-approved, Made For iPod product. (Editor's note: SkyWire is currently in the final stages of Apple's certification process.) While SkySafari is awesome, I'm kind of hoping to see this cable put to more uses, like robotics or electronics hobbyist tools. The RS-232 port has been around for a long time, and while newer technologies have surpassed it in speed, it's an accessible tech for the amateur electronics buff. Check out SkySafari for iOS on the App Store or try the Lite version here. Both are on sale during the MacTech conference (ending November 5). Please note the picture above is of a prototype unit. TUAW is a media sponsor of the MacTech Conference 2010.
Cosmic Discoveries is a great free demo for your iPhone
Every so often I see a free app that is just dying to be used as an iPhone demonstration. The candidate for today is the American Museum of Natural History app called Cosmic Discoveries. When you open the app, you see an image of Saturn. It's a bit crinkly, so you dive in for a closer look, dragging your fingers apart to trigger a zoom. What you'll find is that the image is composed of many hundreds of pictures that can be expanded to near full screen proportions. The zoom goes almost literally to infinity. Some of the pictures are historical photos of observatories or scientists, while many others are striking images of the planets and deep space objects taken by some of our best observatories, or the Hubble or Spitzer Space Telescopes. You can explore the images and the attached information for hours. Alas, all things are not perfect. The app doesn't support the iPhone 4 Retina display. Another big foul up is that you're given the opportunity to share any image with someone via email, but when the image arrives, text is plastered across the middle of the image suggesting that the recipient download the app, too. It's hard to believe that the people who want you to enjoy the grandeur of the universe would deface their own images for some cheap promotion, which could have been handled in the text of the email and not in front of the image. I hope that rather glaring fault gets fixed, but even so, this is a really cool program that you can explore at no cost. You're bound to learn a few things, and the gigantic zoom is just the thing to show off your iPhone. There's no iPad-specific version, and the app requires iOS 2.2.1 or later. %Gallery-106103%
Tonight is International Observe the Moon Night so grab your iPhone
Tonight is the first-ever International Observe the Moon Night. If you have an iOS device, you can get even more out of observing our nearest neighbor and learning about what its made of, how it came to be, and how to observe it. Free apps like Moon Globe will allow you to explore the lunar service in detail tonight, or any night. If you're a social, rather than a solitary backyard astronomer, then here's a map to help you find local public observing groups all over the world. Expect to find some telescopes to get you a live close-up view. Since you'll already be outside, don't forget some of the great astronomy apps that help orient you to the visible planets and constellations. I like Star Walk, Pocket Universe and Distant Suns. Happily, the author of Distant Suns has put version 2 of the app on sale for US$0.99 today only in honor of the lunar event. If you have an iPhone, or iPod touch, it's a good night to look up.
Astronomers theorize what it's like when worlds (and black holes) collide
Tight binary solar systems are inhabited in science fiction -- remember the Star Wars world of Tatooine -- but humanity might find such planets inhospitable over the long term, and not just because of the heat. Using NASA's Spitzer telescope, scientists discovered clouds of dust around three such binary systems far too recent to come from the stars themselves, and theorize that as the stars attract one another over time and get closer and closer together, their respective orbiting planets may get closer as well, and crash into one another catastrophically. Meanwhile, when supermassive black holes dance in pairs, they can merge as one, and astrophysicists have recently simulated how such a joining might appear on our telescopes. According to a team of US and Canadian researchers, the pair may emit strong jets of electromagnetic radiation before they merge, which twist around one another and throw off gravitational waves that can help pinpoint the source. Speaking of sources, we've got plenty of those immediately below if you'd like to read more.
Pocket Universe updated with iPhone 4 gyro support
Pocket Universe has always been one of the best of the astronomy apps, and I reviewed the earlier version positively. I like the use of augmented reality to overlay a star chart on the real sky, and there are lots of features like astronomy news, a planning module for any particular night, and quick and easy guides to finding visible comets and other nighttime events. With some nice clear summer nights there are plenty of things to see and appreciate. The app has now been updated, and is one of the first science apps to use the iPhone 4 gyroscope. According to John Kennedy, who wrote the program, using the gyroscope speeds up orienting the phone position, because the internal compass is a bit slow and prone to interference. The app doesn't need internet access, except for astronomy news and linking to Wikipedia articles. All the star charts and graphics are contained in the app. Pocket Universe supports a night vision mode, which turns the stars and object labels red, keeping bright glare away from sensitive eyes. %Gallery-98596%
Pulsar clocks spin closer to reality
Contrary to popular legend, Pulsar wristwatches don't use the light of dying stars to keep time. However, if researchers at the University of Manchester are correct, the strobe-like effect generated by a collapsed star's spin may indeed be the most accurate clock (sorry, atoms) available to mankind. While pulsars have long been studied for insight into the nature of time and gravity, their patterns weren't as regular as scientists would like, but the U of M team believe that's because the stars are actually swapping between two different states, each with their own rotation speed. By correcting for the difference when the hunk of burning gas puts on the brakes, they can make measurements far more precise -- meaning a greater understanding of the fabric of space-time for the brainiacs, and if we're lucky, reliable pulsar clocks within our lifetime.
Emerald Observatory for iPad is stunning to look at, and it's useful too
I can't think of another iPad app that looks quite as striking as Emerald Observatory. This US $0.99 app is the kind of thing you'd be proud to display if it was a physical object; even when it's running on the iPad, I'm tempted to leave it on as a conversation piece. The single display gives you your local time, the position of the sun, the rise and set times of the sun and moon (and the 5 brightest planets), twilight start and end times, the current moon phase, a display of day and night on a world map, the current day and date (with a leap year indicator), and the ability to move forward or backward in time in order to see different planetary alignments and sun positions. The app is certainly nice for star gazers, and it's also handy for photographers who may be looking for the best time of day to shoot outdoors. %Gallery-96497%
Mars Globe HD: It's like looking out a spaceship window
Those are the first thoughts I had as I began to explore Mars Globe HD for the iPad. The app is a virtual, high-resolution globe of the red planet which you can explore by using your fingers to move and magnify the image. The images are uncannily realistic. While this app is available for the iPhone for free, the added detail and expanse of the iPad screen make this version a very different experience. You can circle Mars from any orbit that you create or take a guided tour with over 1500 surface features mapped and annotated. You can learn about the geologic features of the planet, the spacecrafts that have visited Mars, and switch the map to elevation view to get an idea of just how high some of those Martian mountains are. If you have some 3D anaglyphic glasses around, the app will render Mars in a stunning perspective view, with the labels floating over the landscape. %Gallery-94900%
Take a planetary tour with Solar Walk
Solar Walk is a nifty astronomy romp from the folks who did the popular Star Walk iPhone and iPad app. Instead of exploring the night sky and deep space, you get to tour our solar system in luscious 3D graphics. While the app is universal for the iPhone and iPad, the iPad version is breathtaking with crisp graphics and beautiful color. Tapping on any planet will take you close to it, and you can use your finger to orbit the planet and see it from any angle or zoom. You can see the planets on any particular date and time, and speed up the animation to watch the planets in their elliptical orbits. Tapping the info button gets you some information on all the planets, like size, gravity, composition and more. One omission is that the program doesn't tell you which planets are up for viewing on a particular night. You'll need Star Walk for that. %Gallery-93500%
Carry the Moon in your pocket with this free iPhone app
Last week I was pleased to suggest some free astronomy programs of interest to star-gazers. This week, I'm at it again hoping that space or science buffs get a look at Moon Globe. This very handy app gives you a complete map of our nearest space neighbor, showing you what is visible on any night and from any location. The on-screen display of the moon at the current phase is striking, and very detailed. You can zoom in or out with the usual pinch and stretch moves you are familiar with. It's easy to magnify up to 300 times with stunning detail. With a tap, you will see where spacecraft have landed on the moon and identify surface features like craters, mountain ranges and valleys. The mosaic of pictures that make up the presentation are seamless, and the app gives you the tools to exactly match what you might see in binoculars or a telescope. That's really helpful, because some telescopes reverse the image left to right, or up and down. You can duplicate those views, so it is easy to match up what you are seeing with the display. Clicking on surface feature or a spacecraft name will give you some information that is built into the app, or allow you to link directly to Wikipedia or launch a Google search. There's a lot to like with this app, and with the moon overhead this week, there's a lot to explore. Moon Globe runs on the iPhone and iPod touch, and requires iPhone OS 2.0 or later. The sky is no longer the limit. Check out some screen shots below. %Gallery-86426%
