Marc Alexander
Journalist. Out exploring cosmic rabbit holes.
Articles by Marc Alexander (3)
Earth,Humanity
The Cancer Killer Hiding in a Tree Frog’s Intestines
A gut bacterium derived from the Japanese tree frog makes oxygen-starved tumors in mice its home, then wipes them out. It’s opening a narrow but intriguing window into future cancer therapies.
By Marc Alexander • Aug 18, 2026
Humanity,Consciousness
A Nasal Spray Reversed Brain Aging in Mice. Humans Could Be Next
The Texas A&M therapy targets the chronic brain inflammation behind Alzheimer's and other forms of dementia. Will this mouse nasal spray soon hit humanity’s noses?
By Marc Alexander • Jul 22, 2026
Universe
Humanity Just Found the Milky Way’s Edge And Earth’s Closer Than We Thought
By tracking ancient giant stars, astronomers have traced a fuzzy, long‑hidden boundary where the Milky Way’s star‑forming disc ends that is only tens of thousands of light‑years beyond our own Sun.
By Marc Alexander • Jun 26, 2026