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NASA spacecraft New Horizons nears Pluto after 9-year trip

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It’s going to have another show-time for Pluto as US space agency NASA’s New Horizons spacecraft has covered a distance of three billion miles and now it is approaching the end of its journey of nine years to Pluto.

As NASA’s this mission is humanity’s first trip to Pluto, the scientists are eagerly awaiting to explore the heavenly body and understand more about the farthest known body of our solar system.

On Sunday, the spacecraft will commence clicking the rare pictures of the mysterious, unexplored, icy world that was once deemed a planet.

Pluto has always remained the only planet in our solar system that is yet to be explored. When New Horizons departed from our life supporting planet Earth, Pluto used to enjoy the planet status, the ninth member in the solar system lineup. Seven months later, the International Astronomical Union (IAU) stripped the tag of planethood from Pluto, putting it under the category of dwarf planet. However, it was later known as, plutoid.

New Horizons spacecraft is still over 100 million miles from Pluto, the astronomers behind the project said.

According to the scientists, the photographs captured by New Horizons will offer greater understanding about the plutoid. The first picture is expected to reveal little more than bright dots. The images captures against star fields are believed to help scientists measure the remaining distance and help in keeping the baby grand piano-sized rover on track for a July flyby.

“New Horizons has been a mission of delayed gratification in many respects, and it’s finally happening now. It’s going to be a sprint for the next seven months, basically, to the finish line. We can’t wait to turn Pluto into a real world, instead of just a little pixelated blob,” said Hal Weaver, project scientist from Applied Physics Laboratory of Johns Hopkins University.

The spacecraft was launched from Cape Canaveral in January 2006 at a cost of USD 700 million. It awoke from its last hibernation in December last year. According to the flight controllers, they have spent greater energy in the past several weeks in preparing the spacecraft for the final but most important leg of its nine-year-old journey.

Filed Under: Technology & Research Tagged With: Earth, International Astronomical Union, NASA, NASA Pluto trip, New Horizons spacecraft, Pluto, plutoid, US space agency

Giant asteroid 2004 BL86 to pass Earth on Monday; poses no threat

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PAY-Near-Earth-asteroid

US space agency NASA said that Monday’s sky will offer another unique event when a giant mountain-sized asteroid will past Earth, making the closest pass by such a massive space rock until 2027. But the scientists have refuted all the fears of danger for the Earth dwellers.

Nearly 1,800 feet (550 meters) wide asteroid, named 2004 BL86, will be passing within 745,000 miles (1.2 million kilometers) of Earth on Monday (January 26). The distance between the massive space rock and our planet is approximately thrice the distance between Earth and the moon.

According to NASA scientists, the flyby offers a rare opportunity to have a good look at a near-Earth asteroid.  In this regard, the astronomers have planned to study 2004 BL86 in order to pinpoint its orbit, understand about its surface and also look for its available moons. The main idea is to keep a close watch on the movement of the asteroid with the help of the 1,000-foot (305 m) Arecibo Observatory in Puerto Rico and the 230-foot (70 m) dish-shaped Goldstone antenna at Deep Space Network at NASA in California. These radio dishes will beam microwave signals at the fast-moving asteroid that will then bounce off the target rock and return to our planet.

Lance Benner, the principal investigator for the Goldstone observations of the asteroid, said, “For objects that get this close, that are this large, the radar observations are really analogous to a spacecraft flyby in terms of the caliber of the data that we can get.”

Benner is a scientist at NASA’s Jet Propulsion Laboratory in Pasadena, California.

The space experts believe the resulting black-and-white images can bring out unprecedented revelations about the asteroids and this giant one in particular.

According to the scientists, the foremost task would be to nail the location of the space rock in space and time in order to better understand the object’s orbit and its future movement.

Benner postulates such an experiment will help in benefiting the commercial companies that are looking forward to carrying a mission and mine asteroids in the future.

Declining possibility of any threat by 2004 BL86 to the Earth for the foreseeable future, Benner said keeping eyes closed on the asteroid would be a good idea.

The scientists are expecting to obtain resolutions as fine as 13 feet (4 m) per pixel. The images of 2004 BL86 at such a resolution could reveal minute details of the space rock.

“It’s expected to be one of the best radar-imaging targets of this calendar year,” Benner said.

The Goldstone antenna will be monitoring the asteroid’s movement for five to six hours most nights between January 27 and February 1. On the other hand, the Arecibo Observatory will be tracking 2004 BL86 on Tuesday night (January 27). Scientists said its radar is not completely steerable and the asteroid will be zipping through the sky at 2 degrees per hour.

 

Filed Under: Technology & Research Tagged With: Arecibo Observatory, asteroid 2004 BL86, Deep Space Network, Earth, Goldstone antenna, Lance Benner, NASA

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