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"What will be new about heat deaths is the extent to which the lived environment will become physically uninhabitable for everyone, old and young, middle-aged, healthy and ill."

Findings from the Dark Energy Spectroscopic Instrument (DESI) suggest that dark energy could be evolving over time. If they're right, cosmology will need a new model.

Live Science spoke with author John Green about his latest book, which explores both the history and current realities of tuberculosis.

A quartet of small, rocky exoplanets likely circle Barnard's Star, around 6 billion light-years from Earth, putting them in contention as targets of missions for future human generations.

Oxytocin, a hormone linked to bonding behaviors, might also help mice modulate their pregnancies. Someday, this line of research could improve our understanding of human fertility.

"When a dragonfly hunts, it hovers perfectly still and positions itself between its prey and a shadow cast behind it by, say, a tree, concealing its position. It's a bit like creeping up on someone in a forest hiding behind branches."

Google X has introduced the Taara chip, a fingernail-sized invention that taps the "virtually limitless" potential of light-based internet connectivity.

After finding the debris of two colliding stars swimming in the ocean, researchers are after more evidence from the lunar soil.

Bedmap3 is the most fine-grain map to date of the landscape beneath Antarctica's ice. Scientists created it using more than 60 years' worth of data from satellites, ships and dog-drawn sleds.