Tag archives: Mars
By Matin Durrani in Beijing, China
I caught up this morning on the second day of my visit to Beijing with Ziyuan Ouyang, chief scientist of China’s Moon programme at the National Astronomical Observatories, which lies not far from the city’s iconic “bird’s-nest” Olympic stadium.
I’d first met Ouyang on my last visit in 2011 when the country had so far launched two lunar missions – Chang’e 1 (which orbited the Moon for 18 months before crash-landing onto the lunar surface) and Chang’e 2 (another lunar orbiter that later moved off into interplanetary space).
China’s lunar efforts have continued and Ouyang explained to me what has happened since my last visit – and what the country plans to do next.
How to cook the perfect steak, Bill Nye gets tangled about entanglement and the challenges of going to Mars
By Hamish Johnston
How do you cook the perfect steak? Materials scientist Mark Miodownik of University College London has the answer. To cook his medium-rare steak (pink in the middle with a seared coating on the outside), Miodownik first seals the steak in a vacuum bag and places it in a warm water bath until it reaches 55 °C. He then dips it in liquid nitrogen for 30 s to chill the outer layer without freezing the middle. If that wasn’t unconventional enough, he then throws it into a deep-fat fryer containing duck fat. The result? “A lusciously seared steak, medium rare all the way through. And not a pan in sight!” says Miodownik. The BBC has put together a nice animation of the recipe: “What’s the weirdest way to cook a steak?”.
By Hamish Johnston
This week’s Red Folder looks to the cosmos, starting with a spiffy new video from the European Space Agency. The slick presentation is a preview of some of the extra-terrestrial exploits that the agency has planned for 2016. This includes the landing of the Schiaparelli probe on the surface of Mars. This stationery lander will survey its Martian environs to find a suitable location to drop the ExoMars rover in 2018. The mission’s namesake is the Italian astronomer Giovanni Schiaparelli, who mapped the surface of Mars and was the first to use the term canali to describe the straight lines that were thought to exist on the surface of the planet.
It’s possible that someday humans will colonize Mars and this will involve building dwellings and other structures on the Red Planet. In preparation, Lin Wan, Roman Wendner and Gianluca Cusatis at Northwestern University in the US have come up with a recipe for making concrete on Mars. The trio reckon that any successful colonization of the Red Planet will have to rely on local building materials because shipping stuff from Earth would be horrendously expensive.
By James Dacey in San Francisco
Rocks rich in silica have been discovered on the surface of Mars, bearing a resemblance to environments on Earth that support microbial life. It’s the latest finding from NASA’s Mars Curiosity rover, presented today in San Francisco at the annual meeting of the American Geophysical Union.
After landing in the Gale crater region of Mars in 2012, NASA’s car-sized rover spent the first couple of years exploring the planes around the elevated region known as Mount Sharp. Since 2014 the rover has started exploring the mountain itself, working its way up from the base.
By Tamela Maciel at the National Space Centre in Leicester
Last week, the planet Mars was under the international spotlight once more as NASA scientists announced that liquid water may still be flowing on the surface of the red planet. Also, the much-anticipated film adaptation of The Martian – a 2011 novel by American author Andy Weir – a science-driven story of human survival on Mars, hit the box office. Mars was also the hot topic at a recent event held at the National Space Centre in Leicester. The guest of honour was Apollo 7 astronaut Walter Cunningham and throughout the hour-long Q&A, he emphasized the need to push the “next frontier” and send humans to Mars.
Cunningham is not a man lacking in confidence or the experience of pushing boundaries. When asked if he ever felt the pressure of the astronaut selection or training process, he said “I thought I could fly anything, any time, anywhere. Was that true? I don’t know. But that’s how I felt.”
By Hamish Johnston
Loyal sports fans often need a reason for losing beyond “their team was better than ours”, and the latest blame-game in American football comes with a twist of physics to it. The run-up to this year’s Superbowl is no exception. Some disgruntled Indianapolis Colts fans claim that the New England Patriots had taken advantage of deflated footballs to make their decisive 45-7 victory on 18 January, which sends them to the championship game.
By Michael Banks
This year has been one of change for India. In May, some 800 million eligible voters went to the polls in an election that was won by the Bhartiya Janata Party. Led by Narendra Modi, the party went on to form a coalition government called the National Democratic Alliance.
Our Special Report, which you can read free online, kicks off by looking at how science is faring under Modi’s fledgling administration. Indeed, in September, Modi was personally on hand at the Indian Space Research Organisation (ISRO) to laud engineers who had just carefully manoeuvred the Mars Orbiter Mission into position around the red planet – a feat that announced India as a major player in space exploration.
Modi’s personal interest in ISRO will not only please the organization’s chairman K Radhakrishnan, who we interview for the report, but could also be seen as a sign that the new administration is serious about boosting science in the country.
By Michael Banks
Wagner, together with his colleague Luis Sancho, filed a federal lawsuit in the US District Court in Honolulu in 2008 to prevent the LHC from starting up. In the lawsuit, Wagner and Sancho claimed that if the LHC were switched on, then the Earth would eventually fall into a growing micro black hole, thus converting our planet into a medium-sized black hole, around which the Moon, artificial satellites and the International Space Station would orbit.
By Tushna Commissariat
Just when we thought that it couldn’t possibly have any more practical applications, everybody’s favourite “wonder material” graphene is going to be used to develop “stronger, safer, and more desirable condoms”. Thanks to a Grand Challenges Explorations grant of £62,123 from the Bill and Melinda Gates Foundation, scientists at the University of Manchester will use graphene to develop new “composite nanomaterials for next-generation condoms, containing graphene”. Unsurprisingly, the story made all the national newspapers with the BBC, the Guardian, the Telegraph and the Independent all having their say. The Guardian also noted that industrial graphene-producer Applied Graphene Materials’ shares jumped by 40% during its stock-market debut, the day before the above story broke. You can read more about graphene’s many potential applications on page 50 of Physics World’s anniversary issue, a free PDF download of which is available here.
By Hamish Johnston
A very long time ago, a large amount of water is thought to have flowed on the surface of Mars – and the above image shows what scientists think is an ancient Martian river channel that has been buried by volcanic material.