Science ❯ Astrophysics

Interstellar Medium

Molecular Clouds Heliosphere Local Interstellar Cloud Cosmic Rays Stellar Winds Gas Clouds Charged Particles Gas Dynamics Heliopause Cosmic Chemistry Solar System Boundaries Chemical Enrichment Dust in Space Cosmic Observations Particle Physics Epoch of Reionization Dust and Gas Dust Gas Cooling Processes Giant Stars Gas Phases Dust Clouds Gas Outflows Light Echoes Hydrogen and Oxygen Solar Wind Cosmic Particles Stripping Mechanisms Dust and Gas Clouds Cosmic Phenomena Cosmic Radiation Binary Star Systems Galaxy Clusters Voyager 1 Data ISM Gradients Plasma Physics Dust Alignment Cosmic Environment Voyager 2 Circumgalactic Medium Radiation Fields Gas and Dust Dust Grains

New Horizons Wakes From 321‑Day Hibernation and Resumes Science at Edge of the Solar System

The probe’s return lets scientists begin new measurements of the outer heliosphere that could help pin down where the Sun’s influence ends.

Antarctic Ice Points to Supernova Dust Riding the Local Interstellar Cloud

Hubble Spots Rare Post-Starburst Galaxy Where a Black Hole Stifles New Stars

Antarctic Ice Links Supernova Dust to the Solar System’s Passage Through a Nearby Cloud

NASA Turns Off Voyager 1 Particle Detector to Conserve Power

Chandra Maps Hot Astrosphere Around Young Sun-Like Star HD 61005

Largest Sulfur-Bearing Molecule Yet Found in Space Detected in Starless Cloud

Supermassive Black Hole in J1007+3540 Restarts Jets After 100 Million Years

First Detection of Heavy Water in a Planet-Forming Disk Points to Prestellar Origins

NASA and NOAA Launch Trio of Sun–Earth Missions Toward L1 on SpaceX Falcon 9

Hubble’s New H-Alpha Views Reveal Star Birth in Nearby Spirals NGC 2835 and NGC 45

Researchers Identify Sulfur Trapped in Interstellar Ices

XRISM Maps Sulfur in Gas and Solid Phases Across the Milky Way