u/Dmans99

A five-dimensional gravitational world continues to match a four-dimensional quantum boundary even after physicists add more complicated quantum-gravity corrections, pushing the holographic principle beyond its simplest form.

NASA’s Anil Menon and European Space Agency astronaut Sophie Adenot returned to the International Space Station’s Quest airlock, closed the hatch and began repressurizing at 2:52 p.m. EDT, bringing a six-hour 23-minute spacewalk to a close.

It was the 282nd EVA devoted to station assembly and maintenance, the fifth so far this year, the second for Menon and the first for Adenot, now the first French woman to walk in space. Total ISS EVA time now stands at 74 days 10 hours and 44 minutes since station assembly began in 1998. Menon’s total to date is 12 hours and 50 minutes.

Kamo’oalewa is only about 59 metres long and completes a full rotation every 28 minutes. Near its equator, gravity alone cannot reliably hold loose material to the surface.

A trio of heavyweight black holes are entangled in a dance of death that will quite possibly see them gradually all merge to form an even greater behemoth.

The ion-powered robots would be able to access the methane-carved caves of Saturn's largest moon.

One of the most remarkable facts about the Universe is simply that, over the past couple of centuries, humanity has actually been able to make sense of much of it at a basic, fundamental level. We’ve determined what all of the luminous and light-blocking material, plus radiation, is made of: the normal matter and energy in our Universe that consists of particles within the Standard Model. We’ve discovered black holes and have come to understand how gravity and the expanding Universe works: governed by the laws of Einstein’s general relativity. And we understand the rules governing how particles interact: through the strong nuclear, weak nuclear, and electromagnetic forces, as dictated by quantum field theory.

Scientists simulated ten possible versions of human civilization across the next 1,000 years. Seven collapsed in every run, with some societies repeatedly rebuilding before falling again.