Japanese space probe touches down on asteroid to collect samples

Japan Aerospace Exploration Agency (JAXA) associate professor Yuichi Tsuda holds a banner reading 'success' in front of an image of the Hayabusa 2 space probe's landing on the Ryugu asteroid, 340 million kilometers from Earth, at JAXA's facility in Sagamihara, south of Tokyo, Japan, in this photo taken by Kyodo February 22, 2019. Mandatory credit Kyodo/via REUTERS

TOKYO (Reuters) - A Japanese space probe named after a falcon, Hayabusa 2, has touched down on an asteroid more than 300 million km (186 million miles) from Earth on a mission to seek clues about the origins of life, Japan's space agency said on Friday.

The spacecraft's landing on the asteroid Ryugu, just 900 meters (3,000 feet) in diameter, came after an initial attempt in October was delayed because it was difficult to pick a landing spot on the asteroid's rocky surface.

Hayabusa 2 space probe is seen after it landed on the Ryugu asteroid, in this image taken by ONC-W1, in this handout image released by Japan Aerospace Exploration Agency on February 22, 2019. Mandatory credit Japan Aerospace Exploration Agency (JAXA) - Tokyo University - Kochi University - Rikkyo University - Nagoya University - Chiba Institute of Technology - Meiji University - Aizu University - National Institute of Advanced Industrial Science and Technology/Handout via Reuters

The Japan Aerospace Exploration Agency, or JAXA, said on Friday Hayabusa 2 fired a small projectile into the surface of Ryugu to collect particles scientists hope the spacecraft will bring back to Earth for analysis.

"We may have caused some worry due to the delay but we carried out our plan flawlessly over the past four months to bring it to a successful landing," project manager Yuichi Tsuda told a news conference.

"It landed in the best circumstances among the scenarios we envisioned," he said.

A computer graphic handout image shows Japan Aerospace Exploration Agency's Hayabusa 2 probe arrives to asteroid Ryugu, in this image released by Japan Aerospace Exploration Agency and obtained by Reuters on February 22, 2019. Mandatory credit Japan Aerospace Exploration Agency (JAXA)/Handout via Reuters

It is the second Japanese spacecraft to land on an asteroid after Hayabusa touched down on a near-Earth asteroid named Itokawa in 2005. It was the first to bring asteroid dust back to Earth, although not as much as hoped.

Asteroids are believed to have formed at the dawn of the solar system and scientists say Ryugu may contain organic matter that may have contributed to life on Earth.

JAXA's plan is for Hayabusa 2 to lift off Ryugu and touch back down up to three times. It blasted off in December 2014 and is scheduled to return to Earth at the end of 2020.

A computer graphic handout image shows Japan Aerospace Exploration Agency's Hayabusa 2 probe touches down on an asteroid, in this image released by Japan Aerospace Exploration Agency and obtained by Reuters on February 22, 2019. Mandatory credit Japan Aerospace Exploration Agency (JAXA)/Handout via Reuters ATTENTION

(Reporting by Kaori Kaneko and Malcolm Foster; Editing by Paul Tait)

Hayabusa 2 space probe is seen after it landed on the Ryugu asteroid, in this image taken by ONC-W1, in this handout image released by Japan Aerospace Exploration Agency on February 22, 2019. Mandatory credit Japan Aerospace Exploration Agency (JAXA) - Tokyo University - Kochi University - Rikkyo University - Nagoya University - Chiba Institute of Technology - Meiji University - Aizu University - National Institute of Advanced Industrial Science and Technology/Handout via Reuters

FILE PHOTO: A H-IIA rocket carrying Hayabusa 2 space probe blasts off from the launching pad at Tanegashima Space Center on the Japanese southwestern island of Tanegashima, in this photo taken by Kyodo December 3, 2014. Mandatory credit Kyodo/via REUTERS