5 trends tracked about this subject — the full history, oldest to newest below.
A new self‑charging toothbrush creates tiny electric pulses while you brush, aiming to kill plaque bacteria without external power.
Recent scientific studies suggest human-driven warming and emissions have accidentally halted or prevented the onset of a new ice age.
Ancient DNA findings indicate human presence in the Americas during the height of the last Ice Age.
Researchers discover geological evidence that Earth experienced multiple rapid axis shifts during the age of dinosaurs.
3 news sources are covering this Science story right now — PULSE is tracking how fast it spreads.