Science ❯ Astronomy ❯ Astrophysics

Spectroscopy

Comet Composition Spectral Analysis James Webb Space Telescope Elemental Composition Ultraviolet Observations Exoplanet Studies Spectral Sensitivity Chemical Signatures Elemental Analysis Narrow-line Galaxies Cometary Composition Spectral Diversity Chemical Composition Emission Features Broad-Line Emission Near-Infrared Echellette Spectrometer Light Analysis Multi-Wavelength Observations JWST/NIRSpec Spectroscopy Surface Composition Multi-object Spectrograph C18O and C17O Lines Near-Infrared Spectroscopy Emission Lines Ultraviolet Spectroscopy Near-Infrared Spectra Neural Networks Ultraviolet Spectra DESI DR1 Data Mid-Infrared Spectroscopy

JWST Spots Sulfur in HR 8799 c, Strengthening Case for Core Accretion

High-contrast spectroscopy reveals a chemical fingerprint that points super-Jupiters to a planet-building origin rather than a brown-dwarf pathway.

New Spectrograph Reveals Mars-Mass Iron Bar in the Ring Nebula

JWST Reveals Nine Distant ‘Platypus’ Galaxies With Star-Like Profiles and Galaxy-Like Spectra

Ancient White Dwarf Caught Accreting Debris From a Shattered Rocky World

Comet Lemmon Makes Closest Approach Oct. 20–21 With Prime Viewing Under New Moon

Hubble Spots White Dwarf Devouring Icy, Nitrogen-Rich Exo‑Pluto Fragment

New Spectra Show 3I/ATLAS Is a Carbon‑Chain–Depleted Interstellar Comet With Weak CN Emission