Stories tagged nasa

Jun
13
2013

Bang, zoom! Straight to the Moon, Alice!: Actually, not to the Moon. Straight to space, though. This is one of China's Long March rockets, which carried the Taikonauts to Tiangong-1 yesterday.
Bang, zoom! Straight to the Moon, Alice!: Actually, not to the Moon. Straight to space, though. This is one of China's Long March rockets, which carried the Taikonauts to Tiangong-1 yesterday.Courtesy AAxander
The International Space Station, the pride of low Earth orbit, lives up to its name for the most part—work there is the joint effort of a fifteen-nation partnership. So it’s not just NASA up there, there’s also the Russian Federal Space Agency, and, uh … probably some other things too. (JK. The Japanese, European, and Canadian space agencies are all involved.)

When the partnership built this cool orbiting clubhouse, however, they hung a sign above the rope ladder, reading “No guRlz aLoud!!!” Except instead of “gurlz” it said “China,” and presumably the spelling was a little better. Also, there was no sign or rope ladder, because that would be ridiculous. But the sentiment remained: China is not part of the ISS partnership, because Congress has banned NASA from any contact, collaborations or partnerships with China, because of concerns over technology transfer.

In response, China has gone ahead with a space station program of their own. China has plans to build a full size space station in the not too distant future, but for the time being, they already have an orbiting module—sort of a mini space station. The module, “Tiangong-1,” has actually been in service for almost two years already, and China launched a three-person “taikonaut” crew to practice docking with the module yesterday. This will be China’s fifth manned mission to Tiangong-1, and it includes the second woman from China to travel into space.

What do y’all think? Exciting news? Would we be better off collaborating with China in space? Or are you all for a little competition? What’s the coolest name: astronaut, cosmonaut, or taikonaut? Let everyone know in the comments!

Earth from orbit

by mdr on Jun. 10th, 2013

I love these kinds of videos! These images and data gleaned in 2012 from satellites orbiting the Earth are both fantastic and beautiful. Enjoy!

MORE INFO
NASA's Visualization Explorer page

May
31
2013

Radar images of asteroid 1998 QE2
Radar images of asteroid 1998 QE2Courtesy NASA/JPL-Caltech/GSSR
Radar images of asteroid 1998 QE2 reveal that the large space rock that's nearing Earth has its own satellite orbiting around it. The pictures were captured a couple days ago by the Deep Space Network antenna at Goldstone, California. NASA has been tracking the asteroid since its initial discovery in August of 1998, but only recently discovered it had its own bright little moon.

The binary asteroid's primary body is estimated to be about 1.7 miles across while its orbiting satellite is estimated to be about 2000 feet wide. Only about 16 percent of the near-Earth asteroids larger than 200 meters in size are binary or triple systems, making them a fairly rare occurrence. By measuring the tiny moon's orbit, scientists can calculate the mass and density of the larger asteroid body, which can range from being a chunk of solid rock to a pile of rubble held together by gravity.

Thanks to these radar images, NASA scientists led by Marina Brozovic of NASA's Jet Propulsion Laboratory, Pasadena, California, are able to more accurately estimate 1998 QE2's characteristics and behaviors, such as the length its rotational period (about 4 hours), its size, shape, and surface features, as well as provide a more precise calculation of the system's orbit around the Earth.

Data and resolution will improve as the asteroid reaches its closest approach to Earth around 3pm (CDT) this afternoon. No need to worry, though, the binary asteroid will be a safe 3.6 million miles away and won't get any closer in the next two hundred years.

SOURCES
NASA/JPL news
NASA's Near Earth Orbit Program

After months of analysis, NASA has posted this ScienceCasts report of a large meteoroid impact on the Moon on March 17, 2013. Lunar impacts aren't uncommon - hundreds occur each year - but this one was the brightest flash recorded in the eight year span of the agency's lunar monitoring program. NASA estimates that a 40 kg space rock slamming into the Mare Imbrium region caused the visible-to-the-naked-eye explosion. The bright flash wasn't produced by combustion - the Moon has no atmosphere - but by the glow of hot vapors and molten lunar rock heated up by the tremendous kinetic force of the impact.

SOURCE
Universe Today

Apr
06
2013

The distant, lonely Earth seen from the Moon
The distant, lonely Earth seen from the MoonCourtesy NASA (via Zonu.com)
Back in 1969, when Neil Armstrong and Buzz Aldrin were making their historic moonwalk, I remember thinking to myself, what would happen if some kind of malfunction on the Lunar Module prevented them from blasting off the Moon's surface back to the Command and Service Module? They would most certainly die, there's no doubt about that, because NASA had no rescue plan in place. But what about Michael Collins, the Command Module pilot who was orbiting the Moon in the mother ship? He was waiting to take his fellow crew members home to Earth. If they didn't show up, he'd be in for a pretty lonely and agonizing three-day trip across the quarter-million miles of empty space back to Earth. I wondered what that would have been like.

Fortunately, Apollo 11 was a tremendous success and all three astronauts made it back safely, as did the 18 Apollo astronauts who followed in their footsteps (including the ill-fated Apollo 13 astronauts), so the tragic scenario never played out.

Lonely Al Worden: Even the loneliest of Maytag repairmen would have nothing on this astronaut.
Lonely Al Worden: Even the loneliest of Maytag repairmen would have nothing on this astronaut.Courtesy NASA
But what would that have been like? Astronaut Al Worden probably came closest to experiencing the profound loneliness of isolation in ourter space, when he was piloting the Command Module for the Apollo 15 mission. While his crew mates were busy walking (and driving!) on the Moon's surface, Worden was circling overhead - all by himself - for 3 days. At times, when his craft disappeared behind the far side of the Moon, he had no communications with anyone - not even Mission Control - and was thousands of miles away from his colleagues, and hundreds of thousands of miles away from any other human beings. He holds the record for being the "most isolated human being" ever.

You might think it must have been an anxious time for the solo astronaut, but his story, which can be found here, might just surprise you.

SOURCE and LINKS
The Loneliest Human Being
Apollo 15 Mission
Al Worden's webpage

Hold it there just a second, the reports earlier today that Voyager I has left the solar system may be a bit premature. NASA's team following the spacecraft say that they don't consider it to be outside of the influence of our Sun just yet. Confusing? You can read more about the official NASA position on this matter right here.

Voyager !: Voyager I has now left the sphere of our solar system after 35 years of space travel over 11 billion miles. It still hasn't had to stop to ask directions!!!
Voyager !: Voyager I has now left the sphere of our solar system after 35 years of space travel over 11 billion miles. It still hasn't had to stop to ask directions!!!Courtesy NASA
To paraphrase Capt. Kirk, we've now gone boldly where no one has gone before. After 35 years and 11 billion miles of travel, NASA's Voyager I spacecraft has officially left our solar system. Measuring instruments on the craft no longer defect the movement of solar wind, which is the movement of particles influenced by energy released by our Sun, around Voyager I. Following not too far behind is Voyager II, which as covered about 9.5 billion miles. You can learn more about the milestone by clicking here.

UPDATE: Wait a second, NASA isn't agreeing with this analysis on Voyager I's location. You can read more about this brewing science controversy here. Does Pluto have anything to do with this?

The flyby of asteroid 2012 DA14 on Feb. 15, 2013, will be the closest known approach to Earth for an object its size, but there is no chance it will hit Earth.

The Mars rover, Curiosity, has made an historic drilling into rock on the surface of Mars. The feat is a first in planetary exploration.

"This is the biggest milestone accomplishment for the Curiosity team since the sky-crane landing last August, another proud day for America," said John Grotizinger, the mission's lead scientist.“

The next step is to have the extracted gray powdered rock analyzed by Curiosity's on-board laboratory to determine the sample's chemistry and mineralogy,

SOURCE
BBC report

Got a spare two minutes? Watch this amazing composite photography made by NASA of Earth at night.