Carrie Arnold


Carrie Arnold is a Virginia-based freelance science journalist who covers many aspects of the living world. She’s a contributing editor at NOVA Next, and has also written for Mosaic, National Geographic, Aeon, Nautilus, Scientific American and Women’s Health. She is also the author of “Decoding Anorexia: How Breakthroughs in Science Offer Hope for Eating Disorders.”

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DNA strand

Exon-skipping approach boosts levels of key Rett syndrome protein

Deleting a small region of the MECP2 gene partially restored function in neurons derived from people with Rett-associated variants.

By Giorgia Guglielmi
20 March 2026 | 5 min read
Collage with a portrait of Caitlin Vander Weele in the foreground.

Frameshift: How Caitlin Vander Weele made science communication her business

Her favorite part of research was talking about it. So she left academia and turned that passion into a successful company.

By Katie Moisse
19 March 2026 | 6 min read
Research image of senescing cells.

Signs of aging vary across brain cells

Senescence presents differently depending on the cell type, toxic trigger and neighboring cells, two new studies find.

By Claudia López Lloreda
18 March 2026 | 4 min read