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Science, Space & Robotics Posts - Page 20

Scientists have created the first living thing with 'alien' DNA

"Alien" DNA has been created, with scientists creating the first organism using "alien" DNA. When it comes to normal DNA, which is found in the genes of every single organism, the twin strands of the double helix are bonded with each other with four bases - known as T, G, A, and C.

 

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This new organism adds two new bases, X and Y, which creates a new strand of DNA that has never occurred in the billions of years of Earth's evolution, or anywhere else in the universe. The created, "alien" DNA also reproduces normally, preserving the new DNA during its reproduction. This new breakthrough should pave the way for highly customized organisms, which include bacteria, animals and even humans.

 

This study was 15 years in the making, had scientists at the Scripps Research Institute working hard for over a decade, with their research published in Nature Today, with "A semi-synthetic organism with an expanded genetic alphabet". If you want to read more on the alien DNA, check out the source here.

NASA considers sending greenhouse to Red Planet in 2021

As NASA and other space programs ramp up Mars research, the U.S. space agency is interested in creating a plant-growth experiment in mid-2020. As part of the Mars Plant Experiment (MPX) project, it could be an important step towards potential manned missions and colonization endeavors.

 

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"In order to do a long-term, sustainable base on Mars, you would want to be able to establish that plants can at least grow on Mars," said Heather Smith, MPX deputy principal investigator, in a statement. "This would be the first step in that... we just send the seeds there and watch them grow."

 

MPX would focus more on being a self-contained project, rather than trying to plant seeds in the Martian dirt. The rover would provide water and researchers will check back within 15 days to see if the greenhouse project is successful.

NASA is looking for a new way to kill bacteria

NASA takes a lot of time to kill bacteria and other contaminants on spacecraft that it sends into space. It's particularly important to kill off any bacteria that might be on a spacecraft that will land on the surface of another planet to prevent contamination. The problem NASA is having is that some of the bacteria on spacecraft are nearly impossible to kill.

 

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In fact, some have proven so resilient that NASA is looking for new ways to kill bacteria on future spacecraft. Some of those bacterial spores can survive space and NASA fears that it might be sending life out into space away from Earth. This poses problems for future missions that may send probes to other world's.

Continue reading 'NASA is looking for a new way to kill bacteria' (full post)

You can now watch a livestream broadcast of the Earth from the ISS

On April 18, 2014, the High Definition Earth Viewing (HDEV) experiment was launched. HDEV was launched in the "trunk" of the SpaceX Dragon spacecraft that has been setup outside of the International Space Station (ISS).

 

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There are four commercial HD video cameras on-board, which were installed on the External Payload Facility of the ESA Columbus module a few days ago. The cameras and electronics require a pressurized box in order to protect them from the dark beyond that is space. Anyone can connect to this and watch a livestream of Earth from UStream, something you can do here.

 

There will be moments of blackness when the ISS is in orbital night, which happens every 90 minutes, and lasts for around 40 minutes. Downtime is something that happens too, but this could be due to early problems of the new setup. The biggest point here is that it is all part of a student project, and not the government or NASA doing this - many years ago.

NASA shows off Buzz Lightyear-like Z-2 spacesuit

NASA has been working on the spacesuit of the future in an effort to design a suit that is easier for astronauts to work with in the harsh environment of space. NASA recently announced the winner of its space suit design challenge and an external layer called "Technology" will be added to the Z-2 space suit in the future.

 

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That "Technology" layer uses some cool tech with glow in the dark patterns and electroluminescent wiring. That spacesuit tech took the top spot in the competition grabbing about 63% of all votes cast, or about 147,000 votes.

Continue reading 'NASA shows off Buzz Lightyear-like Z-2 spacesuit' (full post)

Elon Musk confirms Falcon 9 achieve soft touchdown, but lost to storm

Today, SpaceX founder and CEO, Elon Musk, announced that the company's Falcon 9 rocket's boost stage had successfully achieved a soft landing in the Atlantic Ocean, a major milestone for private spaceflight. This milestone will enable SpaceX to reuse the fuel container as well as some rocket parts which will save the company millions and allow for quicker turnaround times between launches.

 

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Unfortunately, Musk said that while the soft landing was successful, the boost stage was lost to the depths of the Atlantic due to a stormfront that caused very rough seas. Musk said that based on the data that was received during the lading, the Falcon 9's landing legs did infact deploy and the rocket stood vertical in the ocean for several seconds before the storm causing it to sink. SpaceX did confirm that they have video footage of the landing, and will post it on their website once internal analysis and editing have finished.

German scientists have frozen light for a record-breaking 60 seconds

If you had told scientists 100 years ago that we would be freezing light, they would be astounded - how would you have done it? Well, German scientists have done just that: frozen light for a record-breaking 60 seconds.

 

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Why would you want to freeze light? For one, to make sure that it stays in place to ensure that it keeps its quantum coherence properties - to make it possible to build light-based quantum memory. This means that the longer light can be held in place, the better it is for computation. This would pave the way for more secure quantum communications, over longer distances.

 

Holding light is no easy task however, as you can't just call in Mr Freeze and ask him to say "Stick Around". Light is an electromagnetic radiation that moves at an incredible 300 million meters per second. On top of that, over 60 seconds, light can travel around 11 million miles (or 18 million km), or 20 round trips to the Moon.

Continue reading 'German scientists have frozen light for a record-breaking 60 seconds' (full post)

The Pentagon's latest experiment, a Terminator-like rescue robot

The Pentagon has been building itself some robots, with a new Terminator-like rescue robot that would be deployed into disaster situations, where it would search for survivors.

 

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The 6-foot 2-inch robot named Atlas is one of the entrants in a contest that is designed to build a robotic hero, thanks to the Defense Advanced Research Projects Agency (DARPA). The competition sees entrants' robots capable of finding their way through rough terrain and entering buildings. The competition was created after the magnitude-9 earthquake in Japan which crippled the Fukushima nuclear plant and sent a tsunami into the country.

 

DARPA is The Pentagon's go-to research department, which has just shown off its Atlas robot - featuring LED lighting, but was switched off and simply in a "static" display for the competition. Head of DARPA's Tactical Technology Office, Brad Tousley, told US Defense Secretary Chuck Hagel that Hollywood has portrayed an unrealistic expectation in peoples' minds about what robots are capable of - at least at this point in time.

Continue reading 'The Pentagon's latest experiment, a Terminator-like rescue robot' (full post)

Obama must explain drone strikes against US citizens overseas

The U.S. Department of Justice must hand over information that justified the launch of drone attacks, including at least two cases in which U.S. citizens were killed abroad. Of note, there has been significant concern over the legality of killing U.S. citizen Anwar al-Awlaki, who was killed in a drone strike while hiding in Yemen in 2011.

 

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"Whatever protection the legal analysis might once have had has been lost by virtue of public statements of public officials at the highest levels and official disclosure of the DOJ White Paper," wrote New York Circuit Judge Jon Newman.

 

The Second U.S. Circuit Court of Appeals in New York has told the federal government to release a Justice Department memo from 2010 that discussed the legality of drone attacks on U.S. citizens overseas.

Continue reading 'Obama must explain drone strikes against US citizens overseas' (full post)

NASA SpaceX Dragon resupply mission to ISS launched Friday

NASA was set about this time last week to launch a resupply mission to the ISS with lots of supplies and scientific gear onboard. Among that scientific gear was the laser communications platform I mentioned before. Before the rocket carrying the Dragon capsule could launch, a leak was discovered that postponed the launch.

 

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NASA had hoped that the launch would take place last Friday, and it did. NASA has announced that nearly 2.5 tons of science investigations and cargo lifted off from Cap Canaveral Florida at 3:25pm EDT on Friday. The launch of the mission marked the third SpaceX cargo delivery to the ISS on its $1.6 billion Commercial Resupply Services contract.

Continue reading 'NASA SpaceX Dragon resupply mission to ISS launched Friday' (full post)

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