arXiv – Open-access archive for preprints in physics, mathematics, and astronomy
PubMed – Biomedical research database with many astrophysics and astrobiology papers
SIMBAD – Astronomical database providing data for astronomical objects
Major Observatories
Hubble Space Telescope – NASA’s iconic space telescope capturing stunning images of the universe
James Webb Space Telescope (JWST) – The most powerful space telescope ever built
Arecibo Observatory – Historic radio telescope facility (decommissioned in 2020)
Atacama Large Millimeter Array (ALMA) – Revolutionary radio telescope array in Chile
Very Large Telescope (VLT) – ESO’s flagship facility in the Chilean Andes
Scholarly Journals
Nature – Leading multidisciplinary science journal
Science – Prestigious peer-reviewed scientific journal
Astronomy & Astrophysics – European journal for astronomical research
The Astrophysical Journal (ApJ) – Premier research journal for theoretical and observational astronomy