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Japan to make crater on asteroid to get samples from inside

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Japan to make crater on asteroid to get samples from inside
News

News

Japan to make crater on asteroid to get samples from inside

2019-03-18 18:49 Last Updated At:18:50

Japan's space agency said Monday that its Hayabusa2 spacecraft will follow up last month's touchdown on a distant asteroid with another risky mission — to drop an explosive to make a crater and collect underground samples to get possible clues to the origin of the solar system.

Hayabusa2 made history on Feb. 22 when it successfully touched down on the boulder-rich asteroid, where it also collected some surface fragments.

The Japan Aerospace Exploration Agency said Hayabusa2 is to drop a copper impactor the size of a baseball and weighing 2 kilograms (4.4 pounds) on the asteroid on April 5 to collect samples from deeper underground where they had not been exposed to the sun or space rays.

The new mission will require an immediate evacuation of the spacecraft to the other side of the asteroid so it won't get hit by flying shards from the blast, JAXA said. While moving away, Hayabusa2 will leave a camera to capture the outcome.

The mission will allow JAXA scientists to analyze details of a crater to find out the history of the asteroid, said Koji Wada, who is in charge of the project.

Hayabusa2 will start descending toward the asteroid the day before to carry out the mission from its home position of 20 kilometers (12 miles) above. It will drop a cone-shaped piece of equipment containing explosives that will blast off a copper plate on the bottom. It will turn into a ball and slam into the asteroid at the speed of 2 kilometers (1.2 miles) per second.

JAXA has previously planned to have Hayabusa2 briefly touchdown in a crater, but an agency researcher, Takashi Kubota, said they may not force it to prioritize safety for the spacecraft. Kubota said it would be the first time a spacecraft would take materials from underground a space object.

The asteroid, named Ryugu after an undersea palace in a Japanese folktale, is about 900 meters (3,000 feet) in diameter and about 300 million kilometers (180 million miles) from Earth.

Follow Mari Yamaguchi on Twitter at https://www.twitter.com/mariyamaguchi

DETROIT (AP) — The Oakland Athletics no longer have to wonder where they'll play the next few seasons. That won't make the long goodbye any easier.

The A's reacted to the announcement that this will be their last year in Oakland with a mixture of sadness and relief.

“At least as a player, you know where you’re headed,” outfielder Seth Brown said Friday before a game against the Tigers in Detroit. “There’s obviously a lot of moving parts, a lot of stuff we’re not privy to, so it’s just been kind of a waiting game on our end. Where are we going to go? Where are we going to be? So I think just having that knowledge -- at least we know where we’re going to be playing next year.”

Vivek Ranadivé, who owns the Triple-A Sacramento River Cats, and Oakland Athletics owner John Fisher announced Thursday that the A’s will temporarily relocate to West Sacramento's Sutter Health Park for at least three seasons. The A's are moving to Las Vegas after a new ballpark is constructed.

The River Cats, who are affiliated with the San Francisco Giants, will continue to play at the same facility.

Fisher was unable to reach an agreement with Oakland city officials on extending the lease at Oakland Coliseum, which expires at the end of this season. The A's have played in the city since 1968.

“There's direction now, which we've talked a lot about,” Oakland A's manager Mark Kotsay said. “We've got time to kind of reflect on what this really means from an organizational standpoint, the history that we've had in Oakland, with this being now the final season. There's a lot of emotion that goes behind this.”

It will not only cause some upheaval for the players and staff but also members of the organization that work behind the scenes.

“At the end of the day, we know where we're going to be for the next three seasons after the finish this year and that in itself gives a little bit of stability,” Kotsay said. “At the same time, in the present, it's challenging in certain ways to think about the finality of this organization in Oakland.”

Sacramento will be a much smaller environment to house a major league team. Ranadivé said the River Cats venue currently seats 16,000 when counting the stands, the lawn behind center field and standing room only.

First baseman Ryan Noda is concerned with the facilities. He's hopeful that significant upgrades will be made, much like the Toronto Blue Jays did at Buffalo's Triple-A facility. The Blue Jays played at Buffalo's Sahlen Field in 2020 in 2021 during the COVID-19 pandemic.

“New walls, new dugouts, new locker rooms — everything they needed to become a big league stadium,” said Noda, who played some games in Sacramento as a minor leaguer. “As long as we can do something like that, then it'll be all right. But it's definitely going to be different than playing in stadiums that hold 40,000 people.”

Kotsay is confident the upgrades will occur.

“I know it will be of major league baseball quality,” he said. “It's has to be of major league baseball quality. I know the Players Association will make sure that takes place, as they did in Buffalo.”

For the rest of this season, the A's will have to deal with small home crowds and disappointed fans.

“We’re sad for the fans, the diehard fans, who always come to our games, always support us, always support the boys wearing the jersey,” Noda said.

AP MLB: https://apnews.com/hub/mlb

Sacramento Kings owner Vivek Ranadive, center, shakes hands John Fisher, owner of the Oakland Athletics, before the start of a news conference where Fisher announced his team will leave Oakland after this season and play temporarily at a minor league park, during a news conference in West Sacramento, Calif., Thursday, April 4 2024.The A's announced the decision to play at the home of the Sacramento River Cats from 2025-27 with an option for 2028 on Thursday after being unable to reach an agreement to extend their lease in Oakland during that time. (AP Photo/Rich Pedroncelli)

Sacramento Kings owner Vivek Ranadive, center, shakes hands John Fisher, owner of the Oakland Athletics, before the start of a news conference where Fisher announced his team will leave Oakland after this season and play temporarily at a minor league park, during a news conference in West Sacramento, Calif., Thursday, April 4 2024.The A's announced the decision to play at the home of the Sacramento River Cats from 2025-27 with an option for 2028 on Thursday after being unable to reach an agreement to extend their lease in Oakland during that time. (AP Photo/Rich Pedroncelli)

John Fisher, owner of the Oakland Athletics baseball team, announces that his team will leave Oakland after this season and play temporarily at a minor league park, during a news conference in West Sacramento, Calif., Thursday, April 4, 2024. The A's announced the decision to play at the home of the Sacramento River Cats from 2025-27 with an option for 2028 on Thursday after being unable to reach an agreement to extend their lease in Oakland during that time. (AP Photo/Rich Pedroncelli)

John Fisher, owner of the Oakland Athletics baseball team, announces that his team will leave Oakland after this season and play temporarily at a minor league park, during a news conference in West Sacramento, Calif., Thursday, April 4, 2024. The A's announced the decision to play at the home of the Sacramento River Cats from 2025-27 with an option for 2028 on Thursday after being unable to reach an agreement to extend their lease in Oakland during that time. (AP Photo/Rich Pedroncelli)

Sutter Health Park, home of the Triple A team Sacramento River Cats, is shown in West Sacramento, Calif., Thursday, April 4, 2024. The Oakland Athletics announced the decision to play at the home of the Sacramento River Cats from 2025-27 with an option for 2028 on Thursday after being unable to reach an agreement to extend their lease in Oakland during that time. (AP Photo/Rich Pedroncelli)

Sutter Health Park, home of the Triple A team Sacramento River Cats, is shown in West Sacramento, Calif., Thursday, April 4, 2024. The Oakland Athletics announced the decision to play at the home of the Sacramento River Cats from 2025-27 with an option for 2028 on Thursday after being unable to reach an agreement to extend their lease in Oakland during that time. (AP Photo/Rich Pedroncelli)

Oakland Athletics manager Mark Kotsay walks to the dugout after making a pitching change during the eighth inning of the team's baseball game against the Cleveland Guardians in Oakland, Calif., Sunday, March 31, 2024. (AP Photo/Jeff Chiu)

Oakland Athletics manager Mark Kotsay walks to the dugout after making a pitching change during the eighth inning of the team's baseball game against the Cleveland Guardians in Oakland, Calif., Sunday, March 31, 2024. (AP Photo/Jeff Chiu)