These sources consist of legitimate science or are evidence based through the use of credible scientific sourcing.  Legitimate science follows the scientific method, is unbiased and does not use emotional words.  These sources also respect the consensus of experts in the given scientific field and strive to publish peer reviewed science. Some sources in this category may have a slight political bias, but adhere to scientific principles. See Also:

Air & Space Magazine
Alliance for Science
American Academy of Pediatrics (AAP)
American Association for the Advancement of Science (AAAS)
American Geophysical Union (AGU)
American Institute of Physics (AIP)
American Journal of Archaeology
American Journal of Public Health (AJPH)
American Physical Society (APS)
American Psychoanalytic Association (APsaA)
American Scientist
Anxiety and Depression Association of America (ADAA)
Archaeology Magazine
Ars Technica
Astronomy Magazine
Australian Skeptics Inc.
Autistic Self Advocacy Network
BioMedical Central (BMC)
Biotechnology Innovation Organization (BIO)
Centers for Disease Control and Prevention (CDC)
Climate Action Tracker
Climate Central
Climate Feedback
Climate Science & Policy Watch (CSPW)
CNET
Cochrane
Committee for Skeptical Inquiry
ConsumerLab.com
Contrail Science
Cosmos Magazine
Discover Magazine
Doubtful News
Earth Magazine
Earth & Sky
Edge Foundation
Encyclopedia Britannica
Examine.com
Federation of American Scientists (FAS)
Frontiers in Psychology
Frontiers Media
Futurism
Genetic Engineering and Biotechnology News (GEN)
Genetic Literacy Project (GLP)
Health Affairs Journal
HealthLine
HowStuffWorks
Inside Science
Institute of Science (IOP)
International Renewable Energy Agency (IRENA)
James Randi Educational Foundation (JREF)
Johns Hopkins Medicine
JStor
Live Science
Mayo Clinic
Medical Daily
Medical News Today
MedicalXPress
Medscape
Mental Daily
MIT Technology Review
Mosaic
NASA
National Center for Science Education (NCSE)
National Centers for Environmental Information (NCEI)
National Geographic
National Academy of Sciences (NAS)
National Institutes of Health
National Oceanic and Atmospheric Administration (NOAA)
Nature
Nautilus Magazine
Neuroscience News
New Atlas
New England Skeptical Society
New Humanist
New Scientist
Next Big Future
Next Observer
Oceana
Pan American Health Organization (PAHO)
Phys.org
Political Psychology Journal
Popular Mechanics
Popular Science
Precision Vaccinations
Proceedings of the National Academy of Sciences of the United States of America (PNAS)
Psychology Today
Psypost
Public Library of Science (PLOS)
PubMed
Quackwatch
Quanta Magazine
Real Clear Science
RealClimate
Realm of History
RedOrbit
ResearchGate
Resource Watch
Retraction Watch
Sage Journals
ScienceAlert
ScienceBlogs
SciCentral
SciCheck
Science Based Medicine
Science Daily
ScienceDirect
Science History Institute
Science Illustrated
Science Magazine
Science Media Centre
Science News
Science Trends
Scientific American
Scripps Institution of Oceanography
Seeker Daily
Significance Magazine
SingularityHub
Skeptic Ink
Skeptic Magazine
The Skeptic’s Dictionary
Skeptical Inquirer
Skeptical Raptor
Skeptical Science
Skeptoid
Sky and Telescope
Smithsonian Magazine
Society for Science
Space.com
TechXplore
The BMJ (British Medical Journal)
The Scientist
The Watchers
TreeHugger
Understand Reality Through Science
Union of Concerned Scientists
Universe Today
US Department of Energy – Office of Science
Vaxopedia
VeryWell
WebMD
What’s the Harm
World Health Organization
World Meteorological Organization
ZME Science