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01 / 05
The Sun Will Destroy the Earth One Day, Right? Maybe Not

Curiosities | Space

The Sun Will Destroy the Earth One Day, Right? Maybe Not

“Scientists have discovered a rocky world orbiting another star that already went through its red giant phase. This planet now orbits a white dwarf, the smaller stellar body that remains after a star burns out. Crucially, the planet looks like it once orbited the star in the same position Earth currently travels around our sun, and did so until it was pushed to a more distant orbit, twice the Earth-sun distance, sometime before the dying giant could eat it. This makes it the first potential rocky world to be observed orbiting a white dwarf.

‘We don’t know if Earth can survive,’ said Keming Zhang, an astrophysicist at the University of California, San Diego, who led the work published on Thursday in the journal Nature Astronomy. ‘If it does, it’ll end up somewhere like this system.'”

From New York Times.

Ars Technica | Space

Honda’s Hopper Suddenly a Serious Player in Rocketry

“An experimental reusable rocket developed by the research and development arm of Honda Motor Company flew to an altitude of nearly 900 feet Tuesday, then landed with pinpoint precision at the carmaker’s test facility in northern Japan.

The accomplishment may not sound like much, but it’s important to put it into perspective. Honda’s hopper is the first prototype rocket outside of the United States and China to complete a flight of this kind, demonstrating vertical takeoff and vertical landing technology that could underpin the development of a reusable launch vehicle.

While Tuesday’s announcement by Honda was unexpected, the company has talked about rockets before. In 2021, Honda officials revealed they had been working on a rocket engine for at least two years. At the time, officials said a small satellite launch vehicle was part of Honda’s roadmap.

The rocket Honda talked about in 2021 could put a payload of up to 1 metric ton into low-Earth orbit. It’s unclear whether Honda is still targeting this sector of the launch market. Company officials then committed to supporting internal development work until about 2025 or 2026, when it would make a ‘go’ or ‘no go’ decision on whether to finish the project and field an operational rocket.”

From Ars Technica.

BBC | Space

First Celestial Image Unveiled from Revolutionary Telescope

“A powerful new telescope in Chile has released its first images, showing off its unprecedented ability to peer into the dark depths of the universe.

In one picture, vast colourful gas and dust clouds swirl in a star-forming region 9,000 light years from Earth.

The Vera C Rubin observatory, home to the world’s most powerful digital camera, promises to transform our understanding of the universe.

If a ninth planet exists in our solar system, scientists say this telescope would find it in its first year.

It should detect killer asteroids in striking distance of Earth and map the Milky Way. It will also answer crucial questions about dark matter, the mysterious substance that makes up most of our universe.”

From BBC.

Live Science | Science & Technology

DARPA Tops Wireless Power Record, Beams Energy Five Miles

“The U.S. military has set a new record for wireless power transmission, beaming a laser carrying more than 800 watts of power across a distance of 5.3 miles (8.6 kilometers).

The test, performed by the U.S. military’s Defense Advanced Research Projects Agency (DARPA) as part of its Persistent Optical Wireless Energy Relay (POWER) program, is a key step toward unlocking the near-instant beaming of power.

It also smashes previous records set by the POWER program, which previously beamed 230 watts across 1 mile (1.7 km) for 25 seconds, and a smaller, undisclosed amount of power as far as 2.3 miles (3.7 km).”

From Live Science.

Reuters | Motor Vehicles

Tesla Rolls Out Robotaxis in Texas Test

“Tesla deployed a small group of self-driving taxis picking up paying passengers on Sunday in Austin, Texas, with CEO Elon Musk announcing the ‘robotaxi launch’ and social-media influencers posting videos of their first rides.

The event marked the first time Tesla cars without human drivers have carried paying riders, a business that Musk sees as crucial to the electric car maker’s financial future.”

From Reuters.