We investigate how efficiently Seyfert outflows convert mechanical power into GeV photons, whether the two detections require distinct mechanisms, and how Seyferts compare with low-ionization nuclear emission-line regions (LINERs). Without new Fermi-LAT data reduction, we homogenize published measurements to 0.1-100 GeV, place local mechanical accelerators on one L_gamma-Edot diagram, and express eta = L_gamma/Edot as a fraction rho of the complete-calorimetry efficiency eta_max ~ 2.5%, inverting rho for the ambient density required by pp losses.
arXiv search: UAP/UFO · Alberto Domínguez · Oct 16
Japan to launch historic round-trip mission to Mars moon
Japanese scientists are readying a mission to Mars' moons to retrieve samples that could help unlock the origins of the solar system and life on Earth, in what aims to be the first round trip to the Martian region.
Disney found a way to buy Character.AI without buying its lawsuits
This week, Character.AI declared bankruptcy. In the past few years, Character.AI has faced multiple private lawsuits over the safety of its chatbots, as well as investigations from regulators around the world. In a declaration filed as part of the bankruptcy, Character.AI’s newly appointed CEO explained that the goal of the bankruptcy was to reach a “consensual resolution” with personal injury claimants and a group of states investigating the company, while maximizing the value of the company’s assets for shareholders.
A Farmer in Egypt Stumbled Upon a Pink Stone and Called the Authorities. They Found the Remains of Two Colossal Statues of Ramses II Beneath the Property
Farmer Khaled al-Shahat was working on his land in Egypt’s Nile Delta when he stumbled upon something unexpected in the dirt—a pink stone that appeared to be covered in hieroglyphic inscriptions. Realizing he might have found something special, he got in touch with the authorities, who sent a team of archaeologists to investigate. Now, the Egyptian Ministry of Tourism and Antiquities has revealed the full extent of Shahat’s chance discovery.
Same news, two sources: what does each one report?
A · Universe Today
Enigmatic Mercury Will Remain A Puzzle Until Someone Sends A Lander
Mercury remains one of our solar system’s most elusive and difficult planets to study. It's easier to send probes to the icy moons of Saturn or Jupiter, or even Pluto, than to land on our innermost planet of Mercury. Ground-based optical observatories don’t risk turning their sights on Mercury, without potentially damaging their optics under the very nearby glare of the bright Sun.
Enigmatic Mercury will remain a puzzle until someone sends a lander
Mercury remains one of our solar system's most elusive and difficult planets to study. It's easier to send probes to the icy moons of Saturn or Jupiter, or even to Pluto, than to land on our innermost planet, Mercury.
Universe Today reports: Mercury remains one of our solar system’s most elusive and difficult planets to study. Phys.org Space reports: Mercury remains one of our solar system's most elusive and difficult planets to study. Both outlets cover the same news, so the useful thing is the difference in detail: what each one includes, what it leaves out, and who each one quotes. This review only restates what each source published. It does not add facts or opinions. Read both and decide for yourself.