Summary
Space sciences encompass the systematic study of the physical, chemical and dynamic properties of the Universe, from the near-Earth environment to the farthest reaches of intergalactic space. The field integrates planetary science—examining the formation, evolution and present-day processes of planets, moons, small bodies and rings—with heliophysics, which investigates the Sun’s activity and its impact on the heliosphere and planetary magnetospheres. Advances in observational astronomy and spacecraft missions drive our understanding of star and galaxy formation, cosmic matter cycles and fundamental physics under extreme conditions. Interdisciplinary efforts in astrochemistry, exoplanet research and cosmology reveal the origins of organic compounds, the diversity of planetary systems and the large-scale structure of the cosmos. Together, these strands inform models of planetary habitability, resource utilisation and the technological challenges of space exploration.
Research from Nature Portfolio
New spectroscopic observations with the James Webb Space Telescope have, for the first time, directly detected water-vapour emission from a member of the main asteroid belt, confirming ice sublimation as the driver of its transient coma and establishing these objects as a distinct reservoir of volatiles. Complementary laboratory simulations of extremely rapid heating on meteorite analogues of the near-Sun asteroid Phaethon demonstrate that sulphur-bearing gases can be retained and released over repeated perihelion passages, accounting for its observed dust ejection without requiring fresh surface renewal. These experiments predict a regolith rich in olivine, iron sulphides, calcium-sulphates and iron oxides, refining our understanding of thermally driven activity in near-Sun bodies.
Topic trend for the past 5 years
The graph below shows the article count in Nature Index journals for space sciences.
* The ‘Current Index’ represents data for a 12-month rolling window, the current window is 1 May 2025 - 30 April 2026.
Technical terms
Main-belt comet: An asteroid-belt object that periodically exhibits comet-like activity driven by sublimation of near-surface ices.
Sublimation: The phase transition in which a solid—typically water ice—changes directly into vapour under low-pressure conditions.
Semimajor-axis jump: A rapid change in an object’s orbital semimajor axis and eccentricity, altering its perihelion heating regime and triggering outgassing.
Regolith: A layer of loose, heterogeneous material—dust, soil and broken rock—covering solid bodies such as asteroids, moons or planets.
Photosputtering: The process by which incident ultraviolet photons impart energy to surface or dust grains, causing the ejection of atoms or molecules.
Heliosphere: The vast bubble of charged particles and magnetic fields generated by the solar wind, enclosing the Solar System and interacting with the interstellar medium.
Notable articles in space sciences
- Spectroscopic identification of water emission from a main-belt comet. Nature (2023).
- Rapid heating rates define the volatile emission and regolith composition of (3200) Phaethon. Nature Communications (2024).
- Semimajor-axis Jumps as the Activity Trigger in Centaurs and High-perihelion Jupiter-family Comets. The Astrophysical Journal Letters (2024).
- New Horizons Venetia Burney Student Dust Counter Observes Higher than Expected Fluxes Approaching 60 au. The Astrophysical Journal Letters (2024).
About these summaries
This Nature Research Intelligence Topic summary is created with the cited references and a large language model. We take care to ground generated text with facts, and have systems in place to gain human feedback on the overall quality of the process in line with our AI principles. We strive to create accurate and useful summaries for people unfamiliar with the research topic and that supports this goal. These pages are a beta release and will be updated as we learn how best to help people gain value from a research topic summary.
Research
Position of Space Sciences in Nature Index by Count
Leading institutions
Collaboration
Top 5 leading collaborators in Space Sciences
Collaborating institutions
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