‘Don’t Look Down’: Vietnam Glass-Bottomed Bridge Targets Thrill-Seekers

People walk on the Bach Long glass bridge during the opening ceremony at Moc Chau district in Son La province, Vietnam, May 28, 2022. Picture taken May 28, 2022. (Reuters)
People walk on the Bach Long glass bridge during the opening ceremony at Moc Chau district in Son La province, Vietnam, May 28, 2022. Picture taken May 28, 2022. (Reuters)
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‘Don’t Look Down’: Vietnam Glass-Bottomed Bridge Targets Thrill-Seekers

People walk on the Bach Long glass bridge during the opening ceremony at Moc Chau district in Son La province, Vietnam, May 28, 2022. Picture taken May 28, 2022. (Reuters)
People walk on the Bach Long glass bridge during the opening ceremony at Moc Chau district in Son La province, Vietnam, May 28, 2022. Picture taken May 28, 2022. (Reuters)

A mountain resort in Vietnam has opened a bridge with a bottom made of glass over a gorge 150 meters (492.13 ft) below to attract thrill-seeking tourists, the third such bridge in the Southeast Asian country.

The Bach Long suspension bridge, which translates as "White Dragon", is in Son La province, northwest of the capital, Hanoi, and bordering Laos.

"I dared not look down as I am afraid of heights," said one visitor, Vi Thi Thu, 22, who ventured onto the bridge after attending Saturday's opening ceremony, which included dragon dancing and ribbon cutting.

The reinforced glass used for the bridge has three layers, each 40mm thick, and can hold up to 450 people at a time, according to a statement from the facility's owner.

The bridge is 290 meters long between two peaks on either side of a gorge, plus a 342-meter pathway on the cliffside.

Guinness World Records lists a 562-meter glass-bottomed bridge in Qingyuan, in China's Guangdong province, as the world's longest.

"The engineering required to build that into the side of a cliff but maintain all the features of nature, the greenery, the rocks, it's been an amazing project," said Glen Pollard, a representative of Guinness World Record, who attended the opening ceremony.

The World Record Association, also a record-certifying body, has listed the two-part Vietnamese bridge as the world's longest at 632 meters.

Another visitor at the opening ceremony said he quickly overcame initial nerves when walking on the bridge.

"At first it makes you panic, but then if you walked over around 10 glass panels, that feeling is gone," said Tran Xuan Tinh, 72.



Bezos-backed Methane-tracking Satellite Lost in Space

US Amazon's founder Jeff Bezos and his wife Lauren Sanchez Bezos leave the Aman Hotel for lunch a day after their wedding in Venice on June 28, 2025. (Photo by ANDREA PATTARO / AFP)
US Amazon's founder Jeff Bezos and his wife Lauren Sanchez Bezos leave the Aman Hotel for lunch a day after their wedding in Venice on June 28, 2025. (Photo by ANDREA PATTARO / AFP)
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Bezos-backed Methane-tracking Satellite Lost in Space

US Amazon's founder Jeff Bezos and his wife Lauren Sanchez Bezos leave the Aman Hotel for lunch a day after their wedding in Venice on June 28, 2025. (Photo by ANDREA PATTARO / AFP)
US Amazon's founder Jeff Bezos and his wife Lauren Sanchez Bezos leave the Aman Hotel for lunch a day after their wedding in Venice on June 28, 2025. (Photo by ANDREA PATTARO / AFP)

A satellite backed by billionaire Amazon founder Jeff Bezos has been lost in space while carrying out an important climate change mission, New Zealand officials said Wednesday.

Designed to measure greenhouse gas emissions with "unprecedented resolution", the MethaneSAT space probe was also funded by Wellington and the US-based Environmental Defense Fund.

Plagued with technical problems, the satellite recently stopped responding to its Earth-bound controllers.

"Clearly, this is a disappointing development," said Andrew Johnson, a senior official at the New Zealand Space Agency.

"As those who work in the space sector know, space is inherently challenging, and every attempt -- successful or not -- pushes the boundaries of what we know and what we're capable of."

The Environmental Defense Fund, which led the project, said it was "difficult news" but would not be the end of its methane-tracking efforts.

MethaneSAT was designed to measure emissions of the potent greenhouse gas, which fuels climate change by trapping heat in the planet's atmosphere.

It has proven notoriously difficult to get accurate estimates of the methane emissions belched out by oil and gas projects around the globe.

"It was one of the most advanced methane tracking satellites in space, measuring methane emissions in oil and gas producing regions across the world," the MethaneSAT team said.

Project lead Steven Hamburg said initial data gleaned by the satellite was "remarkable".
"Recent measurements in the Permian Basin of Texas and New Mexico revealed emissions three to five times higher than estimated by the US Environmental Protection Agency, while emissions observed in the South Caspian region are over 10 times higher than reported," Hamburg wrote on LinkedIn.

MethaneSAT was launched into space in March 2024 on the back of a SpaceX rocket fired from California.

Controllers first lost contact with the satellite on June 20, the MethaneSAT team said in a statement.

They confirmed it had lost all power on Monday this week and was "likely not recoverable".

"The engineering team is conducting a thorough investigation into the loss of communication," MethaneSAT said, according to AFP.

"This is expected to take time. We will share what we learn."

Despite its shorter-than-expected lifespan, MethaneSAT hailed the mission as a "remarkable success in terms of scientific and technological accomplishment".

Amazon founder Bezos pumped more than US$100 million into the project through his philanthropic Earth Fund.

The satellite eventually succumbed after overcoming a string of technical glitches.
It repeatedly entered a sleep, or stand-by, mode without prompting -- forcing engineers to perform a lengthy reset each time.

One of its three thrusters also failed.