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An international team anchored by the Event Horizon Telescope (EHT) Collaboration, which is known for capturing the first image of a black hole in the galaxy Messier 87, has now imaged the heart of the nearby radio galaxy Centaurus A in unprecedented detail. The astronomers pinpoint the location of the central supermassive black hole and reveal how a gigantic jet is being born. Most remarkably, only the outer edges of the jet seem to emit radiation, which challenges our theoretical models of jets. This work, led by Michael Janssen from the Max Planck Institute for Radio Astronomy in Bonn and Radboud University Nijmegen is published in Nature Astronomy today (July 19th, 2021).

At radio wavelengths, Centaurus A emerges as one of the largest and brightest objects in the night sky. After it was identified as one of the first known extragalactic radio sources in 1949, Centaurus A has been studied extensively across the entire electromagnetic spectrum by a variety of radio, infrared, optical, X-ray, and gamma-ray observatories. At the center of Centaurus A lies a black hole with the mass of 55 million suns, which is right between the mass scales of the Messier 87 black hole (six and a half billion suns) and the one in the center of our own galaxy (about four million suns).

Using lidar to calculate the size and species of each tree gives a more exact picture of how big an offset trees are providing.

Following the success in 2019 of Bill Nye and the Planetary Society’s solar sail craft LightSail 2, NASA plans to launch its own solar sail project to investigate near-Earth asteroids.

The Near-Earth Asteroid Scout (NEA Scout) is a small satellite around the size of a shoebox that will sail through space powered by sunlight. The hardware will consist of a stainless steel boom structure across which a thin, aluminum-coated plastic sail will be stretched. The total area covered by the sail is around that of a racquetball court, and as photons from the sun bounce off the shiny surface, they will propel the craft forward.

As wacky as this idea sounds — it was made famous by, among others, science fiction author Arthur C. Clarke — it has been shown to work in low-Earth orbit by the LightSail project. Now NASA will take this one step further by deploying a solar sail in deep space.

A U.S.-based expert says swarms of Chinese vessels have dumped human waste and wastewater for years in a disputed area of the South China Sea where they anchor.

“Gorgon’s failure poses a major problem for any oil and gas company betting on CCS to meet net zero,” said Ian Porter, the chairperson of Sustainable Energy Now, WA. “CCS simply does not work at the scale and at the price needed.”

(Bloomberg) — The world’s biggest project to capture and store carbon dioxide isn’t working like it should, highlighting the challenges oil companies face in tackling their greenhouse gas emissions. Chevron Corp.’s system at the $54 billion Gorgon liquefied natural gas export plant in Australi…

Billionaires, Cathie Wood and sci-fi classics are all pushing traders with interstellar interests toward stocks and ETFs. The risks remain out of this world.

CHINA’S NEW THORIUM-BASED NUCLEAR REACTOR is well situated for being adopted for Space applications.

China is slowly but steadily positioning itself to leap ahead of the US Space program. It is doing this without pomp and fanfare, and without the idea of a “space race,” simply based upon what it requires for its future.

1) Recent noteworthy progress on molten salt thorium reactors could be a key component of future Chinese space-worthiness. Originally designed by the USA’s Oak Ridge National Laboratory in the 1960’s, they were planned to be used for nuclear powered strategic bomber planes, before the nuclear submarine concept became adopted as more feasible. They were chosen because they can be miniaturized to the size of an aircraft. By the same token, they could conceivably be used in advanced atmospheric or space propulsion.

Continue reading “China unveils design for first waterless nuclear reactor” »

This Video Explains Chromosomal Theory Of Inheritance.

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Military-grade spyware licensed by an Israeli firm to governments for tracking terrorists and criminals was used in attempted and successful hacks of 37 smartphones belonging to journalists, human rights activists, business executives and two women close to murdered Saudi journalist Jamal Khashoggi, according to an investigation by The Washington Post and 16 media partners.

The phones appeared on a list of more than 50000 numbers that are concentrated in countries known to engage in surveillance of their citizens and also known to have been clients of the Israeli firm, NSO Group, a worldwide leader in the growing and largely unregulated private spyware industry, the investigation found.

The list does not identify who put the numbers on it, or why, and it is unknown how many of the phones were targeted or surveilled. But forensic analysis of the 37 smartphones shows that many display a tight correlation between time stamps associated with a number on the list and the initiation of surveillance, in some cases as brief as a few seconds.