Showing posts with label astronomy. Show all posts
Showing posts with label astronomy. Show all posts

Wednesday, December 10, 2014

Space & Tech newsdump

Busy with uni work and yes, projects! =P
[need to finish an Android app in two 1-week sprints that allows year 10 students to learn functional programming by doing it!]
So as pointed out already, I'll abandon the idea of posting news items as blog articles regularly. This doesn't mean I'll stop posting all news type articles though!

Because I don't want to spend the time regurgitating news articles in nice English, here's a link dump of noteworthy articles in the past few weeks: (it also serves as a personal favourite/bookmarker =P) =D

http://www.sciencealert.com/australian-researchers-have-converted-sunlight-into-electricity-with-more-than-40-efficiency

http://garethhayes.net/hackrf-blue/

http://www.thesaturdaypaper.com.au/2014/11/22/private-cubesat-start-ups-join-the-space-race/14165748001263

www.space.com/27588-nasa-asteroid-capture-mission-mars.html

http://www.teslamotors.com/blog/factory-upgrade

Why CSIRO is important:
http://csironewsblog.com/2014/11/20/megans-seven-reasons/

gmailblog.blogspot.com.au/2014/11/going-under-hood-of-inbox.html

http://www.theregister.co.uk/2014/12/01/penniless_and_desperate_wikipedia_sits_on_60m_cash/

http://lunar.xprize.org/news/blog/lunar-mission-one-takes-crowd-funded-route-moon

www.space.com/27936-nasa-orion-spaceship-survives-test-flight.html

http://www.space.com/27833-nasa-orion-capsule-first-test-flight-infographic.html

https://www.reddit.com/r/learnprogramming/wiki/faq

www.space.com/27944-nasa-orion-spaceship-textbook-spaceflight.html

http://www.csoonline.com/article/2853027/malware-cybercrime/report-hacker-group-fin4-stealing-insider-info-to-exploit-significant-changes-in-stock-prices.html

http://www.citylab.com/cityfixer/2014/09/when-adding-bike-lanes-actually-reduces-traffic-delays/379623/

http://www.parabolicarc.com/2014/12/08/jaxa-testing-deep-space-microsat-with-asteroid-flyby/

http://www.livescience.com/49028-farthest-quantum-teleportation.html

www.space.com/27955-spacex-rocket-ocean-landing-platform.html

http://www.latimes.com/business/autos/la-fi-hy-tesla-plugs-into-australia-20141209-story.html
Tesla finally updates their website to show superchargers on the Hume Hwy in 2015! YESS!! Can't wait to drive a Tesla from MEL-CBR! =)


Wednesday, October 29, 2014

SpaceX landing on floating platform in the ocean CONFIRMED! =P && Antares (by Orbital Sciences) explodes. =( UPDATED

SpaceX landing on floating platform in the ocean CONFIRMED! =P


So Elon Musk has confirmed SpaceX will attempt to land on a floating platform 90m*50m for their next Falcon 9 flight. YAY!

Florida Today:
He estimated no better than a 50-50 chance of a successful platform landing on the first attempt.
[...]
"So I think we're quite close," he said.
SpaceNews.com:
“We actually have a huge platform that’s being constructed in a shipyard in Louisiana right now,” Musk said in the interview, which was webcast live. He described the platform as about 90 meters long by 50 meters wide. “We’re going to try and land on that on the next flight.
“There’s at least a dozen launches that will occur over the next 12 months,” Musk said. “I think it’s quite likely — probably 80 to 90 percent likely — that one of those flights will be able to land and refly.”

Space.com coverage: www.space.com/27538-spacex-reusable-rocket-test.html


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Antares (by Orbital Sciences) explodes. =(


Sadly, the Antares rocket has exploded seconds after launch for their CRS-3 mission:


From simple visual inspection of this video, it seems like an engine failure for one or both engines - from the small engine flash and subsequent smoke; (or other failure causing engine flame-out or automatic shutdown). Subsequently, with no thrust, the rocket fell back to earth and the impact caused the big explosion.

Cargo carried included normal CRS foodstuffs, experiments, etc, and the Arkyd3 - a testbed for Planetary Resources' telescope satellites, including one which was Kickstarted (including a contribution from yours truly). 

According to Wikipedia, Orbital Sciences hasn't had that many failures, with successes in all Minotaur vehicles and the Pegasus with 3 outright failures and 2 partial successes (on primary payload) early in their launch history.Note that this is in line with many launch vehicle companies including SpaceX, whose Falcon 1 platform was their testbed which failed 3 out of 5 times.

However, SpaceX's Falcon 9 has had no failures except 1 secondary payload failure over its 13 total launches these last 4 years. Add to that: NASA pays $1.6 billion to SpaceX to deliver cargo over 12 missions while they have to pay $1.9 billion to Orbital Sciences for only 8 missions. Add to that each mission delivering more cargo in the Dragon by mass than Orbital Sciences' Cygnus spacecraft. The Cygnus is only superior in delivering more pressurized volume than the Dragon, and can't return cargo to Earth like the Dragon does.

Talk about SpaceX cutting costs and competition savings! (The citizens of USA should be glad SpaceX is now able to compete for USAF/DoD/NRO contracts.) I'm glad it's SpaceX that won the CCDev contract, and has a really cool Dragon V2 crewed spacecraft coming out, designed for reusability and landing by thruster functionality. Hurray for SpaceX reusability - providing sustainable and cheaper access to space!

Dailymail's coverage, in-depth: http://www.dailymail.co.uk/news/article-2810128/Ready-liftoff-Nighttime-rocket-launch-International-Space-Station-visible-East-Coast.html
Space.com's coverage, editor promises updates on this page:
www.space.com/27576-private-orbital-sciences-rocket-explosion.html

UPDATE:


More about the accident and engine here: http://www.spacenews.com/article/launch-report/42340antares-rocket-explodes-after-liftoff includes spectator video and sound of explosion:


Press conference at 9pm ET (12pm AEDT, now) on Nasa TV

Broadcast live streaming video on Ustream

More updates to follow probably; from conference:
Emphasis of launch/rocket science and space science being hard (obviously). No injuries, only lost hardware.
Orbital Sciences - will investigate what's wrong, solve the problem and prevent future problems.
Investigation includes evaluating debris (like aircraft investigations [like ATSB]!) - don't touch debris, could be dangerous.
Wallops - good range clearing of safety area.
ISS - incl crew in good shape, have supplies for at least 4-6months always, Progress spacecraft tomorrow, SpaceX on Dec 9, quite a bit of research hardware lost and spare hardware.

Investigation data and everything locked down until investigation process goes through; wait for daytime for debris collecting. Solid propellant burning in area. Contract - provides for ability to eventually get hardware lost on this flight to orbit, Orbital compensates NASA if they don't reach orbit. Launchpad could be damaged, tank pressure sensor readings still available and holding pressure - extent of damage not known until fully investigated.
Engine failure observed in telemetry and visually ~T+10s and range then sent the destruct command ~T+20s, before it hit the ground.
Investigation: Orbital in command, supported very well by NASA and MARS (@Wallops), debris in morning, cameras, telemetry/data. Orbital obviously won't fly until they know and correct the problem.
Insurance - Orbital does have various/some amounts of insurance on their launches.
Engines - Orbital chose to go with this (Russian) engine as there weren't many choices for powerplants of this size, especially in USA, and it was extensively tested and has proved robust. They've also chosen another engine for future Antares, according to the link above providing the video of spectator view. Wonder if they considered using SpaceX's engines =P

Sunday, October 5, 2014

UAV OutBack Challenge update & Bonus Space Pic

As expected, CanberraUAV - who almost completed the UAV Outback Challenge last time - won the challenge, taking home $50k in prize money. 2 years ago they failed only because their bottle deployed unintentionally during flight. This year, they got the bottle within 3 metres (2.6) of Outback Joe (who they're trying to find and rescue with a bottle, in this S&R competition scenario).

Here's a great write-up debrief by them:   (obligatory iframe)

Make sure to check out the really cool software they put up on github! And also that documentation repo. One of the coolest things about CanberraUAV is how open they are (as in open-source), and how much they share with other teams!

Unfortunately, while the Monash UAS team's (which I joined recently) plane flew very well, they couldn't find Joe. I'll be going to the internal debrief on Tuesday and hopefully learn more, as well as try and locate Joe using (augmentations of) our software from our data gathered.


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Space pretties incoming! Check this photo! (link to NASA APOD page)
Much wow. So mind-bend - how?!. Also check out a lot of the guy's other really cool photos. I obviously really like the aurora photos in his gallery.



Wednesday, September 18, 2013

KSP update 0.22


Kerbal Space Program is one of the funnest games ever, superseding The Sims and will probably take 2nd place in my all-time favourite game list, after Tribes 1. That is, until Star Citizen comes out and dominates the list. I love the open and mod-able, community driven aspects of this game. =)

This most recent update finally gives the option of inserting sub-assemblies to new designs, so you can finally import 2 assemblies/designs from different saved designs without having to build from scratch! Kind of like importing parts into a CAD assembly. I have no more excuse to not play this game (it's on Linux! via Unity =D) ... although uni study beckons Dx



Also, an abridged list of stupid things that I have done (a full list would be way too long). These are rookie mistakes which experience, if not proper systems engineering would (hopefully) have mitigated.
  • Not realising you forgot to put parachutes on your spaceship until you've re-entered the atmosphere
  • Using all your fuel to achieve a high orbit and realising your Kerbonauts are now stranded ... hope they're not hungry
  • Forgetting to activate solar panels once in orbit so your spacecraft (a planned addition to a collection of spaceships docked together forming a "space station") runs out of electrical charge. It's also unmanned so can no longer be controlled. Recovery mission is being planned (yes, one is also being planned for my stranded Kerbonauts, though admittedly with much lower priority xD)
And there we have our top 3 "oh crap, I'm so stupid" moments so far =)
The game has also prompted learning of orbital mechanics and stuff and is a great companion to: The Basics of Spaceflight - brought to you by JPL, "we do everything cool".

Monday, September 16, 2013

NASA News - September 2013

OK, I'm a bit on the slow side but I blame my travels to Melbourne and having so much fun at a wedding and fellowshipping =)

NASA has finally announced that Voyager 1 has left the solar system!
This, after scientists weren't quite sure how to interpret the data which seemed to indicate that it sometimes was still in the solar system and sometimes not. But now NASA thinks that Voyager 1 has passed the heliopause and is currently travelling through interstellar medium!

I guess we could add one more to the tally at http://xkcd.com/1189/ and hope we don't have to add any more =P

Also NASA news, they have 3 candidate asteroids for potential exploration by bringing it to moon orbit or something like L1/L4 and sending astronauts to do some science on it!

And if you haven't seen this photo bomb yet, something more light-hearted =P
http://www.universetoday.com/104679/absolutely-incredible-photo-frog-launches-with-ladee/




Monday, July 1, 2013

ARKYD Funded & Apple buys Samsung products?

So ARKYD, the Space Telescope for everyone was successfully funded at $1.5mil, and they hosted a livestream broadcasted by spacevidcast (woot!), I'm sure you can see my comments during the livestream if you look hard enough =P

You can still join in the fun (pledge & get rewards) with the grace period: http://www.planetaryresources.com/arkyd-newsletter-signup/
I wonder if I'll actually get time on this telescope (without pledging enough for reward on time) as a student ... Was hopeful about Ardusat (1st kickstarter for me). 

Also, check out the sweet $99 pledge deal, you get planetary annihilation (a previous kickstarted game) and Richard Garriot/Lord British was backing it too! (He's so well connected, space tourist, Star Citizen friend, etc.)

Wish DSI did something like this. They seemed like the ones who would do something like this ... good thing PR got the ball rolling =)

- Break -

So I didn't know this before, but apparently Apple uses Samsung chips in their devices. As Samsung's biggest (read $billions/year) customer. Lol. #USPO&IPsucks

Wednesday, May 1, 2013

2012 SciFi realities and Future Tech + Virgin Galactic

http://myscienceacademy.org/2013/01/03/27-science-fictions-that-became-science-facts-in-2012/


That chimera - bloody biologists are making FMA stuff a reality! I also lol'd at the accidents on self-driving cars ...

Also, Oculus Rift (revealed 2012) is a giant leap for NerveGear (SAO).

And congratulations to the folks at Virgin Galactic for the first powered SpaceShipTwo flight breaking mach 1, add that to the list of official responses =P.

Thursday, March 28, 2013

Tuesday, March 19, 2013

Total Recall (1990) is totally real

New measurements of Mars' south polar region indicate extensive frozen water. The polar region contains enough frozen water to cover the whole planet in a liquid layer approximately 11 meters (36 feet) deep. A joint NASA-Italian Space Agency instrument on the European Space Agency's Mars Express spacecraft provided these data.

We can totally terraform this stuff. (And also dump our carbon there =P).

Now I'm wondering if the moon has enough water ice to make a moon base have all their water and fuel needs taken care of.