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“It Is A More Rugged Surface Than We Predicted,” NASA’s Plan to Scoop Up Dirt from Asteroid Hits Complication
NASA’s plan to scoop up dirt and gravel from an asteroid has hit a snag, but scientists say they can overcome it.
The asteroid Bennu was thought to have wide, open areas suitable for the task. But a recently arrived spacecraft revealed the asteroid is covered with boulders and there don’t seem to be any big, flat spots that could be used to grab samples.
In a paper released Tuesday by the journal Nature, scientists say they plan to take a closer look at a few smaller areas that might work. They said sampling from those spots poses “a substantial challenge.”
“But I am confident this team is up to that substantial challenge,” the project’s lead scientist, Dante Lauretta, told reporters at a news conference Tuesday.
The spacecraft, called Osiris-Rex, is scheduled to descend close to the surface in the summer of 2020. It will extend a robot arm to pick up the sample, which will be returned to Earth in 2023. The spacecraft began orbiting Bennu at the end of last year, after spending two years chasing down the space rock.
When the mission was planned, scientists were aiming to take dirt and gravel from an area measuring at least 55 yards (50 meters) in diameter that was free of boulders or steep slopes, which would pose a hazard.
“It is a more rugged surface than we predicted,” said Lauretta, of the University of Arizona in Tucson and one of the paper’s authors. But he said he believed a sample could still be collected.
NASA project manager Rich Burns said a spot will be chosen this summer and the setback won’t delay the sampling.
Patrick Taylor, who studies asteroids at the Lunar and Planetary Institute in Houston but didn’t participate in the spacecraft mission, noted in a telephone interview that the spacecraft was evidently maneuvering more accurately and precisely than had been expected.
“That gives me confidence they will be able to attempt a sample acquisition,” he said.
Bennu is 70 million miles (110 million kilometers) from Earth. It’s estimated to be just over 1,600 feet (500 meters) across and is the smallest celestial body ever orbited by a spacecraft.
A Japanese spacecraft, Hayabusa2, touched down on another asteroid in February, also on a mission to collect material. Japan managed to return some tiny particles in 2010 from its first asteroid mission. (VOA)
By Siddhi Jain
The author who named the book after her twin sons -- Puhor and Niyor -- is a parent who has seen and heard the tales of ridicule and discrimination suffered by many in India and beyond. She says the book is an artistic illustration for kids that details how different families can live and coexist. Whether it's children with two dads or two moms, children with a single dad or single mom, and even multiracial family units, Borthakur's book teaches love, understanding, and compassion towards unconventional families.
Beyond race, gender, color, and ethnicity which have formed the bases for discrimination since the beginning of time, this book aims to bring to light a largely ignored issue. For so long, single parents have been treated like a taboo without any attempt to understand their situations; no one really cares how or why one's marriage ended but just wants to treat single parents as villains simply for choosing happiness and loving their children.
Homosexual parents, a relatively new family system, is another form that has suffered hate and discrimination for many years. Pritisha emphasizes the need to understand that diversity in people and family is what makes the world beautiful and colourful. 'Puhor and Niyor's Mural of Family Stories' is a firm but compassionate statement against all forms of discrimination on the bases of sexual identity, gender, race, and even differences in background
The Guwahati-born author says, "With this book, I'm not trying to take away the job of parents in forming habits, I simply want to do my part as a parent. It is important that we impart the right values in our kids in a bid to build a better, more inclusive and tolerant global society that is fair to everyone." The author's first attempt at a book was an Assamese poetry 'Anubhav', published in 2010.
Set to be published under the label of Author's Channel, the book is like an adventure; a journey into uncharted territories, untouched subjects and matters long ignored. In her words. "The book takes a critical stand in defense of people in society who have had to undergo severe emotional torture for no cause of theirs. It is a terrible conception to think such people any less of a human just for being different," says publisher Aruna Naidu. By September 30, this title, priced at Rs 299, will be available online and in offline bookstores. (IANS/ MBI)
Rajesh U Pandya, Managing Director, KAI India, gives easy and completely doable tips to follow at home:
* Refrain from harsh soaps: You should be mindful of the soap you are using to wash your hands. Your soap can have a moisturizing element in it like aloe vera or shea butter. Ensure that you're washing your hands with normal water as hot water can make your hand's skin dry and scaly.
Make use of your personal nail clipper to cut your nails. | Pixabay
* Be aware of nail or cuticle inflammation or redness: If there are any signs of infection, disinfect the skin as soon as possible with an anti-bacterial or anti-fungal ointment.
(Article originally written by N.Lothungbeni Humtsoe) (IANS/ MBI)
Keywords: Nails, groom, hand, exfoliate, chew, nail clipper, bite, cuticle
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