Lifeboat Foundation

Call it the force’s doing, but it has been surprises galore for the GEDI mission.

In early 2023, the lidar mission that maps the Earth’s forests in 3D was to be burned up in the atmosphere to make way for another unrelated mission on the International Space Station. A last-minute decision by NASA saved its life and put it on hiatus until October 2024. Earlier this year, another surprise revealed itself: the mission that replaced GEDI was done with its work, effectively allowing GEDI to get back to work six months earlier than expected.

That’s how, in April, a robotic arm ended up moving the GEDI mission (short for Global Ecosystem Dynamics Investigation and pronounced “Jedi” like in the Star Wars films) from storage on the ISS to its original location, from where it now continues to gather crucial data on aboveground biomass on Earth.

Cambodia has welcomed 60 baby Siamese crocodiles — a hatching record for the endangered species in this century, conservationists say.

They have called it a “real sign of hope”, after more than 20 years of efforts to revive the reptile’s numbers in the remote Cardamom Mountains.

The olive green freshwater reptile has a distinct bony crest at the back of its head — by some estimates, it can grow up to 3m or nearly 10ft.

Two 650-foot-tall (200-m) towers have risen in China’s Gansu Province. Combined with an array of 30,000 mirrors arranged in concentric circles, the new facility is expected to generate over 1.8 billion kilowatt-hours of electricity every year.

While photovoltaic panels that directly convert sunlight to electricity are what most people think of when they hear the term “solar power,” there is another method of harvesting the Sun’s power that’s been steadily developing since the early 1980s. Known as solar thermal or concentrated solar power (CSP), these systems rely on mirrors known as heliostats to bounce sunlight to a central gathering point. There, the concentrated beams heat a transfer fluid that in turn heats a working fluid. This fluid then evaporates, turns a turbine, and generates electricity.

Continue reading “World’s first dual-tower solar thermal plant boosts efficiency by 24%” »

The California High-Speed Rail Authority just received environmental approval to connect downtown Los Angeles to the Bay Area with a bullet train capable of reaching speeds of up to 200 miles per hour, KTLA5 reported.

KTLA5 called the approval “a historic milestone in a state notorious for holding up construction projects for environmental review.”

Continue reading “High-speed rail project linking two major U.S. cities takes step forward: ‘A historic milestone’” »

Even Albert Einstein himself didn’t believe we’d be able to detect gravitational waves from the merger of two black holes.

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Our universe is a strange place, with underlying rules we’re only just beginning to understand, but could the strangest thing of all about our Universe be that we are able to live here to observe it in the first place?

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Continue reading “The Fermi Paradox: Fine Tuned Universe” »

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Once docked, the ISS will “drift down” to 220 km (136 miles) above the Earth’s surface over the following year.

Once in position, the vehicle will fire its 30 Draco engines for a series of burns setting up for a final re-entry burn four days later.

The deorbiting vehicle will be tasked with firing its engines to keep the station on course and powering it when comes into contact with thickening layers of the upper atmosphere during its descent.

An intense discussion is now going on at the International Seabed Authority (ISA), starting in March 2024, and proceeding up to August, for its various instances, committees, and general assembly. The most critical point concerns the call for licenses, which are being advanced by several commercial mining entities, to explore deep sea grounds, seeking rare minerals highly in demand, fueling the energy and green transitions worldwide. Clean energy technologies require more materials, such as copper, lithium, nickel, cobalt, aluminum, and rare earth elements, than fossil fuel-based technologies. Demand for critical minerals could surge 450% by 2050 to meet Paris Agreement climate goals[1]. The deep sea, particularly in the form of polymetallic nodules (PMNs), contains significant cobalt resources. Estimates suggest that by 2035, deep-sea mining of PMNs could produce 61,200 tons of cobalt per year, which could account for up to 50% of current annual global cobalt demand[2].

For the first time, ISA is considering the revision of deep-sea mineral exploitation regulations [3]. Commercial deep-sea mining has attracted increased attention, particularly owing to potential oceanic challenges, including pollution, overfishing, biodiversity, and habitat loss, acidification, rising water temperatures, and climate change. Those favoring commercial mining highlight the need for a supply of materials necessary for global energy transition. Recent meetings in Kingston, Jamaica, have focused on revising the draft regulations for deep-sea mineral exploitation. While some progress has been made, several areas of disagreement remain, particularly regarding environmental protections and the speed of issuing commercial permits. The ISA is aiming to finalize the new regulations by July 2025, but there are concerns that this deadline may not be met.

On the commercial side, The Metals Company (TMC), Canada, anticipates submitting an application for a mining exploitation license in 2024, potentially starting mining operations in 2025, even before the regulations are fully in place. While ISA has not granted any commercial licenses for deep-sea mining, some countries are moving forward independently. Norway already passed a bill in January 2024, which authorizes prospecting for deep-sea minerals, accelerating the hunt for the precious metals that are in high demand for green technologies. Environmental scientists have warned such oceanic exploitation could be devastating for marine life. The outlook concerns Norwegian waters, nevertheless, agreements on mining in international waters could also be reached this year.