Japan's Epic Asteroid Mission Successfully Launches
Japan successfully launched a probe destined for a distant asteroid on a six-year mission, just weeks after a European spacecraft's historic landing on a comet.
Japan on Wednesday successfully launched a probe destined for a distant asteroid on a six-year mission, just weeks after a European spacecraft's historic landing on a comet.
The robotic spacecraft, Hayabusa-2, blasted off aboard Japan's H-IIA rocket from Tanegashima Space Center in the south of the country.
The rocket roared up out of the Earth's gravitational pull trailed by orange flames at 1:22 pm (0422 GMT) after launch delays due to bad weather.
Hayabusa-2 was successfully separated from the H-IIA and entered the intended orbit around the planet at the start of its mission, according to the Japan Aerospace Exploration Agency (JAXA).
The probe will use the Earth's gravity as a slingshot to propel it towards its target.
Television footage showed JAXA crew at ground control clapping as the launch was confirmed a success, while social media users around the world tweeted their congratulations.
The 31-billion-yen ($260-million) project will send the explorer towards the 1999JU3 asteroid in deep space.
It will blast a crater in the asteroid to collect materials unexposed to millennia of wind and radiation, in the hope of answering some fundamental questions about life and the universe.
It is expected to reach the asteroid in mid-2018 and spend around 18 months in the area.
It will also drop tiny MINERVA-II rover robots as well as a French-German landing package named Mobile Asteroid Surface Scout (MASCOT) for surface observation.
If all goes well, asteroid samples will be returned to Earth in late 2020.
The carbonaceous asteroid is believed to contain organic matter and water, the stuff of life.
Analysing the extra-terrestrial materials could help shed light on the birth of the solar system 4.6 billion years ago and offer clues about what gave rise to life on Earth, scientists have said.
The Hayabusa-2 mission blasted off weeks after the European Space Agency succeeded in making the first-ever landing on a comet in November.
Scientists said initial data sent from the robot lab Philae showed traces of organic molecules and a surface much harder than imagined.
Philae, released from its mothership Rosetta, has gone into hibernation on comet 67P/Churyumov-Gerasimenko, having used its onboard battery power after 60 hours of prodding and probing.
JAXA aims to bring 100 milligrams (1/286th of an ounce) of samples to Earth after a round trip of more than five billion kilometers.
The probe is the successor to JAXA's first asteroid explorer, Hayabusa -- the Japanese term for falcon -- which returned to Earth in 2010 with dust samples after a trouble-plagued seven-year mission.
The spherical 1999JU3 asteroid, which is around a kilometer (half a mile) across, is believed to contain significantly more organic matter and water than the potato-shaped rock studied by the original Hayabusa.
Despite various setbacks during its epic seven-year odyssey, including intermittent loss of communication and damage to its motors, the first Hayabusa was hailed as a scientific triumph when it returned to Earth.
H-IIA F26 with the Asteroid Explorer Hayabusa-2 on board launched at 1:22:04 p.m. on Dec 3, 2014 (JST) from the Tanegashima Space Center.
'Selfies' are all the rage these days. Every smartphone is attached with a camera and to the Internet, so it was inevitable that our vain species would take full advantage of the technology, snapping endless photos of cats and, of course, ourselves. Selfies -- or 'self portraits' to the uninitiated -- have become such a cultural phenomenon that Oxford University Press has declared 'Selfies' their word of the year. This may sound asinine, but Merriam-Webster Dictionary balanced it out
. In the spirit of fairness, I've combined the two words of the year and applied them to robots. Yes, robots. Robots that explore space, doing science. And just in case you didn't know, robots can be pretty vain too, taking snapshots of their junk for the whole Internet to see. To narrow the field down a bit, I've only selected robots that have photographed parts of their own structure, or attached components. I've also allowed the occasional robotic camera that was deployed for the sole purpose of taking a selfie
(nice effort, IKAROS).
The first robot that likely comes to mind is the undisputed
King of Selfies
, NASA's Mars Science Laboratory rover Curiosity. The car-sized rover impressed the world with its selfie prowess when mission scientists released a stunning high-resolution mosaic of the rover in November 2012, only a couple of months after it landed inside Gale Crater. Curiosity achieved the feat by holding its Mars Hand Lens Imager (MAHLI) at (robotic) arm's length, taking a truly authentic "selfie." The world applauded this effort.
But Curiosity certainly wasn't the first robot on Mars to snap its own picture, and it won't be the last. Although the Viking landers that touched down on the Red Planet in 1976 didn't have robotic arm-mounted cameras capable of taking a "true" selfie, they did their best.
from Viking 2 was snapped on Nov. 2, 1976, showing a part of the lander's deck, the American flag, the bottom of the robot's high-gain antenna and a boulder-littered Utopia Planitia, the largest identified impact crater on Mars.
Staying on Mars, some amazing panoramic shots and top-down self portraits have been attained by NASA's epic twin Mars Exploration Rovers Spirit and Opportunity. As you've probably guessed, commanding a robot on another planet to take self portraits isn't for fun (even though the outcome
a lot of fun), it actually serves a purpose. In the case of Viking and Curiosity, engineers on Earth can study the photos to see the condition of instruments on the robots' 'decks.'
, for solar powered rover Spirit, using its mast-mounted panoramic camera was very useful for capturing amazing 360 degree views of the surrounding terrain. It was also great for keeping track of the build-up of Martian dust on its panels. In this photo taken in 2005, Spirit's solar array shines in the sun, having collected only a very thin layer of dust two years after it landed.
Spirit's twin rover Opportunity soldiers on to this day, exploring the Martian surface after nearly a decade since landing. Jan. 25, 2014, is its 10 year Mars "birthday" (mark your calendars!). Currently exploring the edge of Endeavour Crater, helping to piece together clues of Mars' evolution (complementing the science being done by Curiosity), Opportunity is no stranger to taking its own photo. As Spirit and Opportunity were designed to the same specifications, Opportunity can also take 360 degree views and monitor dust build-up on its solar panels.
in 2011, its once shiny solar array is blanketed with a camouflaging coat of dust.
No, robotic Mars explorers aren't especially fond of sefies, it's just that NASA has sent a lot of Mars surface missions in the past few years. Seen here in 2008, NASA's Mars arctic lander Phoenix took its own photo using a mast-mounted panoramic camera in a similar style to Spirit and Opportunity. It seems that the first rule of robotic selfies is: If it ain't broke, don't fix it.
Now for something a little different. In 2007, the European comet-chasing spacecraft Rosetta made close approach with Mars, coming within 1,000 miles of the surface, using the planet for a fuel-saving gravity assist. The boost in speed is allowing Rosetta to catch up with comet 67P/Churyumov–Gerasimenko -- an encounter that is planned for 2014. But during the flyby, the spacecraft managed to snap this iconic photo of Mars from space. What makes
so special is that Rosetta also caught its own solar array in the shot.
Leaving Mars, we now head to Venus where, in 1982, the Soviet Venera 13 lander managed to survive the hellish conditions and transmit data for two hours. In that time it also returned some color photos of the Venusian surface. In those photos, the hardy lander was able to capture some of its jagged landing gear at the bottom of the shot. It may not be perfect, but while sitting in a pressure-cooker with a limited amount of time to return valuable data, it's a superb effort.
In a video released by the Chinese Space Agency of the Chang'e 2 lunar orbiter in 2010, the view shortly after launch was captured by a camera overseeing the deployment of the mission's solar panels.
, the video in its entirety
Whoa! What's that huge UFO that photobombs the shot?
Oh, that's Earth.
The Japanese Hayabusa asteroid sample return mission got a little creative with this selfie effort. In 2005, as it approached near-Earth asteroid Itokawa, with the sun at its back the mission snapped its shadow falling on the sunlit asteroid surface.
for leading me to Hayabusa!
In 2010, the Japanese space agency JAXA launched a pioneering mission. Using only the sun's energy for propulsion, the Interplanetary Kite-craft Accelerated by Radiation Of the Sun, or IKAROS, probe set sail through interplanetary space for a January 2011 rendezvous with the planet Venus. After the solar sail was launched, two miniature wireless cameras were ejected by IKAROS as it deployed in Earth orbit,
. Then, as IKAROS reached its destination eight months later, it took a snapshot of a crescent Venus (inset). (Thank you
for reminding me about these stunning IKAROS photos!)
Special thanks to all my Twitter buddies who engaged in Wednesday evening's conversation about robot selfies!
Can you think of more space mission "selfies"? Feel free to share them in the comments below.