Crash of private Japanese moon lander blamed on software, last-minute location switch

May 28, 2023 | News On Japan

May 28, 2023 (Japan Today) - A private Japanese moon lander went into free-fall while trying to land on the lunar surface last month, company officials said Friday, blaming a software issue and a last-minute switch in the touchdown location.

The spacecraft belonging to the company ispace was originally supposed to land in a flat plain. But the target was changed to a crater before December’s launch. The crater’s steep sides apparently confused the onboard software, and the 7-foot (2-meter) spacecraft went into a free-fall from less than 3 miles (5 kilometers) up, slamming into the lunar surface.

The estimated speed at impact was more than 300 feet (100 meters) per second, said the company's chief technology officer, Ryo Ujiie.

NASA's Lunar Reconnaissance Orbiter photographed the crash site the next day as it flew overhead, revealing a field of debris as well as lunar soil hurled aside by the impact.

Computer simulations done in advance of the landing attempt did not incorporate the terrain of the new landing site, Ujiie said.

CEO and founder Takeshi Hakamada said the company is still on track to attempt another moon landing in 2024, and that all the lessons learned will be incorporated into the next try. A third landing attempt is planned for 2025. ...continue reading

Source: ANNnewsCH

Typhoon No. 25 Threatens Heavy Rain in Early Silver Week Holiday

Typhoon No. 25 was moving westward over waters south of the Ogasawara Islands as of noon on September 18 and is expected to bring heavy rain and stormy weather to the islands, Kanto, the Izu Islands and eastern Shizuoka Prefecture during the first half of Japan's five-day Silver Week holiday, before conditions improve across much of the country later in the break.

Bear Sighting Raises Alarm at Popular Tokyo Hiking Spot

A black bear has been spotted near one of the most popular hiking trails on Mount Takao in western Tokyo, prompting authorities to urge visitors to take precautions ahead of the five-day Silver Week holiday and the approaching autumn foliage season.

Starbucks Considers Selling Majority Stake in Japan Business

Starbucks is considering selling a majority stake in its Japanese business, potentially valued at as much as $3 billion, or about 470 billion yen, as the U.S. coffee chain seeks to concentrate management resources on its struggling North American operations.

Halloween Jumbo Lottery Goes on Sale With 400 Million Yen Top Prize

Japan's Halloween Jumbo Lottery went on sale nationwide on September 16, offering a combined top payout of 400 million yen for the first prize and its adjacent-number prizes.

Shinkansen Introduces New Luxury Private Compartment

A new top-tier "Supreme Class" offering fully private compartments above the level of Green Car service will debut on the Tokaido and Sanyo Shinkansen on October 1, with passengers able to experience the new seating at a demonstration booth at Shin-Osaka Station.

MEDIA CHANNELS

MORE Sci-Tech NEWS

Rare Pod of About 50 Dolphins Spotted in Seto Inland Sea

A rare pod of around 50 dolphins was spotted swimming through the Seto Inland Sea off Ozu, Ehime Prefecture, with dozens of dorsal fins repeatedly breaking the surface as the animals moved together.

Cybercab Arrives in Japan

Tesla unveiled its Cybercab in Japan for the first time on September 11, showcasing an AI-powered autonomous taxi designed without a steering wheel or pedals.

Footage Shows Tokyo Flood Control Tunnel After Heavy Rain

Large volumes of floodwater poured into the Metropolitan Area Outer Underground Discharge Channel in Kasukabe, Saitama Prefecture, following heavy rain on September 7, prompting the massive underground flood-control facility known as the "Underground Temple" to go into operation.

Lights Out for Fluorescent Lamps

Fluorescent lamps that have illuminated Japanese homes and workplaces for decades are approaching the end of production, with Panasonic preparing to wind down a business it has operated since 1951 while experts warn that incorrectly replacing some fixtures with LEDs could create a fire risk.

Dry Fog Finds New Uses in Industry, Farming and Tourism

Osaka-based spray nozzle maker IKEUCHI is expanding applications for its proprietary "Dry Fog," an ultra-fine mist that can cool, humidify and create visual effects without leaving surfaces wet, with the technology now being used in factories, livestock farming, crop cultivation and tourist attractions in Japan and overseas.

Japan Moves to Commercializing Low-Power Optical Computing

Japanese companies are moving closer to commercializing photonics-electronics convergence technology that replaces part of conventional electrical data transmission with optical signals, potentially allowing huge volumes of data to move with lower latency while sharply reducing power consumption as artificial intelligence drives rapid growth in electricity demand from data centers.

Just 27 Centimeters Could Dramatically Reduce Power Consumption

A new generation of optoelectronic integration technology developed over four decades by Japanese companies is moving closer to commercialization, offering a way to transmit huge volumes of data with low latency while sharply reducing the electricity consumed by data centers as artificial intelligence drives explosive growth in computing demand.

CameraJet Connects Cleaning Coaching and Privacy

Dyson CameraJet™ turns the smart toothbrush into an active sensing product, making useful feedback and clear privacy design part of the same engineering brief.

< 2 3 4 5 >