space-and-planetary-science

The empirical acceleration scale that normalises the radial acceleration relation (RAR) is conventionally written as a0 ≃ 1.20 × 10−10 m s−2. It marks the scale at which the Newtonian acceleration inferred from the baryonic mass distribution no longer closes the observed galactic acceleration budget. It has long been noted that a0 lies close to clightH0/(2π), although the uncorrected Hubble-tempe…

本书以「老-杨创世纪宇宙观」（Lao-Yang Genesis Cosmology，LYGC）为核心理论框架，沿历史纵轴系统考察中西宇宙生成哲学的主要传统——从希腊几何宇宙论、道家生成宇宙观，经牛顿机械论、康德—拉普拉斯星云假说，至爱因斯坦相对论宇宙学与ΛCDM标准模型——并以普里戈金耗散结构理论、怀特海过程哲学、莫兰复杂性文明论为科学中间地带，揭示西方宇宙哲学三重结构性局限：机械论、物质还原论、静态实体本体论。全书以「科学升华」（Scientific Sublimation）为方法论范畴，在充分吸收西方科学成就的基础上实现哲学前提的根本超越。 老-杨创世纪宇宙观通过「银河系→太阳系→地球→月球→生命→人类文明」的宇宙生成链，率先在哲学—科学统一框架内实现「宇宙生成—生命生成—文明生成」三位一体整合。四大理论支柱——道即银河系（宇宙本体论）、宇宙生成链（生成论）、自然控制论与Univer…

Abstract This book proposes the Lao-Yang Genesis Cosmology (LYGC) as a unified philosophical-scientific framework integrating classical Daoist wisdom with modern cosmology, complexity science, and systems theory. Through the methodology of 'Scientific Sublimation' — a three-stage process of dialogue, integration, and transcendence — the work systematically surveys the major traditions of cosmogon…

NASA’s Psyche spacecraft just used Mars as a giant gravitational slingshot to continue its journey toward a strange metal rich asteroid. The close flyby boosted the spacecraft’s speed by about 1,000 mph while also producing rare crescent images of Mars glowing through its dusty atmosphere.

Scientists believe a dust-filled ring just outside Jupiter acted like a cosmic “planetesimal factory,” producing multiple generations of early space rocks with very different compositions. The discovery may finally explain the origins of several mysterious meteorite types that have survived since the birth of the Solar System.

Scientists used some of the most advanced plasma simulations ever created to uncover how the universe builds enormous magnetic fields out of turbulence. The discovery could reshape our understanding of stars, black holes, neutron star collisions, and dangerous solar eruptions.

For Jaclyn Kagey, preparing astronauts to put boots on the Moon is part of her daily work.  As the Artemis extravehicular activity lead in NASA’s Flight Operations Directorate, Kagey plays a central role in preparing astronauts to safely explore the lunar surface.  During Artemis missions, astronauts will explore the …

When free oxygen accumulated in Earth’s atmosphere during the Great Oxygenation Event (GOE), the course of life on Earth changed forever. It created a new energy pathway organisms could exploit, and exploit it they did. Complex life only appeared when oxygen was present, and complex life is one of Earth’s defining features. Cyanobacteria were the […] The post Early life on Earth may have thrived …

We propose Geometric Response Cosmology (GRC), a phenomenological effective framework where time emerges as a kinematic residue of a real 3D substrate and gravity is described as an elastic response of the energy substrate through effective couplings with baryonic matter density. This coupling generates MOND-like dynamics at low accelerations, with the critical scale a_0 ≈ c H_0 / (2π) emerging f…

We've discovered large numbers of small rocky exoplanets, but they're at such great distances that habitability is extremely difficult to determine. New research suggests than since Mars is on the edge of being habitable, studying it in detail can shed light on rocky exoplanets. If we can understand things like tectonic activity and atmospheric escape on Mars, we can understand how they may play …

Astronomers believe they have uncovered traces of an entire galaxy consumed by the Milky Way billions of years ago. A research team has identified 20 peculiar stars within our galaxy's disc that appear to be leftovers from a small dwarf galaxy swallowed during the Milky Way's formative years. The findings, published this month in the Monthly Notices of the Royal Astronomical Society, point to a c…

New research led by Penn State scientists suggests that some of the highest-energy cosmic rays may consist of atomic nuclei heavier than iron and could help narrow down the cosmic sources capable of accelerating these particles.

The galaxies of the universe are moving away from us much faster than they should, and British astrophysicist Indranil Banik may have found out why. If he is right, we live in a cosmic void.

Tonight, the waxing moon and the brilliant blue-white star Spica create a stunning pairing visible across the southern sky.

Using spectral data from the Near-Infrared Spectrograph (NIRSpec) onboard the NASA/ESA/CSA James Webb Space Telescope, astronomers analyzed the atmosphere of TOI-199b, a distant Saturn-mass world that is neither frozen nor scorching hot. The post Webb Detects Methane in Atmosphere of Exo-Saturn TOI-199b appeared first on Sci.News: Breaking Science News .

DARPA has a plan to keep geosynchronous satellites going for years beyond their expiration date. The agency aims to test it with a mission launching as soon as this summer.

NASA astronaut Chris Williams captured a sunset from the ISS, revealing Earth’s atmosphere in vibrant color and breathtaking detail.

This monograph establishes the Observer-Catalyst Layer of the Justika Origin Theory, executing a total ontological inversion of modern astrophysics, evolutionary biology, and cosmology. Fundamentally redefining the material universe as a dynamic Projected Architecture, this doctrine proves that reality operates in a state of Quantum Semantic Latency until conscious intelligence sustains its highe…

This week, Astronomy magazine Editor Emeritus Dave Eicher invites you to find the Ring Nebula in the constellation Lyra — a glowing shell of gas that offers a glimpse of our solar system’s distant future. When a Sun-like star exhausts its hydrogen, it blows off an illuminated cloud of gas that lingers for tens of Continue reading "Come full circle with the Ring Nebula" The post Come full circle w…

Lost on the Moon for nearly 40 years, this Soviet rover seemed destined to remain a relic of the space race until scientists made an unexpected discovery.